diff --git a/api/runner.ts b/api/runner.ts
index f2a9560..ce6eafe 100644
--- a/api/runner.ts
+++ b/api/runner.ts
@@ -1,5 +1,5 @@
 
-import { MergedCoverageData, BasicUri, CODECOV, CompilationStatus, DeploymentStatus, Env, LogLevel, MappedCoverageData, RUCALLTST, RUCRTCBL, RUCRTRPG, TestBucket, TestCase, TestCaseResult, TestMetrics, TestRequest, TestSuite, WrapperCmd, TestOutcome, AssertionResult } from "./types";
+import { MergedCoverageData, BasicUri, CODECOV, CommandOverrides, CompilationStatus, DeploymentStatus, Env, LogLevel, MappedCoverageData, RUCALLTST, RUCRTCBL, RUCRTRPG, TestBucket, TestCase, TestCaseResult, TestMetrics, TestRequest, TestSuite, WrapperCmd, TestOutcome, AssertionResult } from "./types";
 import { TestLogger } from "./testLogger";
 import { ILELibrarySettings } from "vscode-ibmi/src/api/CompileTools";
 import IBMi from "vscode-ibmi/src/api/IBMi";
@@ -298,14 +298,17 @@ export class Runner {
             return 'errored';
         }
 
+        let proxyCmd: string | undefined;
         let wrapperCmd: WrapperCmd | undefined;
 
         const isRPGLE = ApiUtils.isRPGLE(testSuitePath);
         if (isRPGLE) {
             const rucrtrpg = testSuite.testingConfig?.rpgunit?.rucrtrpg;
+            proxyCmd = testSuite.testingConfig?.rpgunit?.rucrtrpg?.proxyCmd;
             wrapperCmd = testSuite.testingConfig?.rpgunit?.rucrtrpg?.wrapperCmd;
-            if (wrapperCmd) {
-                delete rucrtrpg?.wrapperCmd;
+            if (rucrtrpg) {
+                delete (rucrtrpg as CommandOverrides).proxyCmd;
+                delete (rucrtrpg as CommandOverrides).wrapperCmd;
             }
 
             compileParams = {
@@ -318,9 +321,11 @@ export class Runner {
             }
         } else {
             const rucrtcbl = testSuite.testingConfig?.rpgunit?.rucrtcbl;
+            proxyCmd = testSuite.testingConfig?.rpgunit?.rucrtcbl?.proxyCmd;
             wrapperCmd = testSuite.testingConfig?.rpgunit?.rucrtcbl?.wrapperCmd;
-            if (wrapperCmd) {
-                delete rucrtcbl?.wrapperCmd;
+            if (rucrtcbl) {
+                delete (rucrtcbl as CommandOverrides).proxyCmd;
+                delete (rucrtcbl as CommandOverrides).wrapperCmd;
             }
 
             compileParams = {
@@ -392,7 +397,8 @@ export class Runner {
         // Build compile command
         const productLibrary = this.testCallbacks.getProductLibrary();
         const languageSpecificCommand = isRPGLE ? 'RUCRTRPG' : 'RUCRTCBL';
-        let compileCommand = content.toCl(`${productLibrary}/${languageSpecificCommand}`, flattenedCompileParams as any);
+        const compileCommandName = proxyCmd || `${productLibrary}/${languageSpecificCommand}`;
+        let compileCommand = content.toCl(compileCommandName, flattenedCompileParams as any);
 
         // Wrap compile command if a wrapper command is specified
         if (wrapperCmd && wrapperCmd.cmd) {
@@ -522,9 +528,11 @@ export class Runner {
             // Merge base execution params (ie. from VS Code settings) and execution params from config file
             const baseExecutionParams = this.testCallbacks.getBaseExecutionParams(qualifiedTstPgm, xmlStmf, testCase?.name);
             const rucalltst = testSuite.testingConfig?.rpgunit?.rucalltst;
+            const rucalltstProxyCmd = testSuite.testingConfig?.rpgunit?.rucalltst?.proxyCmd;
             const rucalltstWrapperCmd = testSuite.testingConfig?.rpgunit?.rucalltst?.wrapperCmd;
-            if (rucalltstWrapperCmd) {
-                delete rucalltst?.wrapperCmd;
+            if (rucalltst) {
+                delete (rucalltst as CommandOverrides).proxyCmd;
+                delete (rucalltst as CommandOverrides).wrapperCmd;
             }
             const testParams: RUCALLTST = {
                 ...baseExecutionParams,
@@ -547,7 +555,8 @@ export class Runner {
 
             // Build call tests command
             const productLibrary = this.testCallbacks.getProductLibrary();
-            let testCommand = content.toCl(`${productLibrary}/RUCALLTST`, testParams as any);
+            const testCommandName = rucalltstProxyCmd || `${productLibrary}/RUCALLTST`;
+            let testCommand = content.toCl(testCommandName, testParams as any);
 
             // Wrap call tests command if a wrapper command is specified
             if (rucalltstWrapperCmd && rucalltstWrapperCmd.cmd) {
@@ -559,14 +568,13 @@ export class Runner {
             // Build CODECOV command if code coverage is enabled
             let coverageParams: CODECOV | undefined;
             if (testSuite.ccLvl) {
+                const codecovProxyCmd = testSuite.testingConfig?.codecov?.proxyCmd;
                 const codecovWrapperCmd = testSuite.testingConfig?.codecov?.wrapperCmd;
                 coverageParams = {
                     cmd: testCommand,
                     module: [],
                     ccLvl: testSuite.ccLvl,
-                    ccView: testSuite.testingConfig?.codecov?.ccView,
                     outStmf: testStorage.CODECOV,
-                    testId: testSuite.testingConfig?.codecov?.testId,
                 };
 
                 // Add the service program under test and modules from the testing config
@@ -577,7 +585,16 @@ export class Runner {
                 coverageParams.module = coverageParams.module.map((m: string) => `(${m})`);
 
                 const flattenedCoverageParams = ApiUtils.flattenCommandParams(coverageParams);
-                const codecovCommand = `QDEVTOOLS/CODECOV CMD(${flattenedCoverageParams.cmd}) MODULE(${flattenedCoverageParams.module}) CCLVL(${flattenedCoverageParams.ccLvl}) OUTSTMF('${flattenedCoverageParams.outStmf}')`;
+                const codecovCommandName = codecovProxyCmd || `QDEVTOOLS/CODECOV`;
+                let codecovCommand = `${codecovCommandName} CMD(${flattenedCoverageParams.cmd}) MODULE(${flattenedCoverageParams.module}) CCLVL(${flattenedCoverageParams.ccLvl}) OUTSTMF('${flattenedCoverageParams.outStmf}')`;
+
+                // Append extra params from the codecov config (anything beyond the fields already in the hand-rolled command)
+                const knownCodecovKeys = new Set<string>([...Object.keys(flattenedCoverageParams), `proxyCmd`, `wrapperCmd`]);
+                const extraCodecovParams = Object.fromEntries(
+                    Object.entries(testSuite.testingConfig?.codecov || {}).filter(([key]) => !knownCodecovKeys.has(key))
+                );
+                const flattenedExtraCodecovParams = ApiUtils.flattenCommandParams(extraCodecovParams);
+                codecovCommand = content.toCl(codecovCommand, flattenedExtraCodecovParams);
 
                 // Wrap code coverage command if a wrapper command is specified
                 if (codecovWrapperCmd && codecovWrapperCmd.cmd) {
diff --git a/api/types.ts b/api/types.ts
index 7bfda55..04ddfa7 100644
--- a/api/types.ts
+++ b/api/types.ts
@@ -151,11 +151,16 @@ export interface TestMetrics {
 
 export interface TestingConfig {
     rpgunit?: {
-        rucrtrpg?: RUCRTRPG & { wrapperCmd?: WrapperCmd },
-        rucrtcbl?: RUCRTCBL & { wrapperCmd?: WrapperCmd },
-        rucalltst?: RUCALLTST & { wrapperCmd?: WrapperCmd }
+        rucrtrpg?: RUCRTRPG & CommandOverrides,
+        rucrtcbl?: RUCRTCBL & CommandOverrides,
+        rucalltst?: RUCALLTST & CommandOverrides
     },
-    codecov?: CODECOV & { wrapperCmd?: WrapperCmd }
+    codecov?: CODECOV & CommandOverrides
+}
+
+export interface CommandOverrides {
+    proxyCmd?: string,
+    wrapperCmd?: WrapperCmd
 }
 
 export interface RUCRTRPG {
diff --git a/schemas/testing.json b/schemas/testing.json
index ea58f32..0de7f4a 100644
--- a/schemas/testing.json
+++ b/schemas/testing.json
@@ -375,6 +375,11 @@
                             "default": "*JOB",
                             "markdownDescription": "Target CCSID\n\nSpecifies the CCSID that the compiler uses to read the source files."
                         },
+                        "proxyCmd": {
+                            "type": "string",
+                            "default": "",
+                            "markdownDescription": "Proxy Command\n\nSpecifies a command to substitute the `RUCRTRPG` command."
+                        },
                         "wrapperCmd": {
                             "type": "object",
                             "markdownDescription": "Wrapper Command\n\nSpecifies a custom command to wrap the `RUCRTRPG` command.",
@@ -777,6 +782,11 @@
                             "default": "*JOB",
                             "markdownDescription": "Target CCSID\n\nSpecifies the CCSID that the compiler uses to read the source files."
                         },
+                        "proxyCmd": {
+                            "type": "string",
+                            "default": "",
+                            "markdownDescription": "Proxy Command\n\nSpecifies a command to substitute the `RUCRTCBL` command."
+                        },
                         "wrapperCmd": {
                             "type": "object",
                             "markdownDescription": "Wrapper Command\n\nSpecifies a custom command to wrap the `RUCRTCBL` command.",
@@ -924,6 +934,11 @@
                             ],
                             "markdownDescription": "On Failure\n\nSpecifies test execution behavior after a failing assertion."
                         },
+                        "proxyCmd": {
+                            "type": "string",
+                            "default": "",
+                            "markdownDescription": "Proxy Command\n\nSpecifies a command to substitute the `RUCALLTST` command."
+                        },
                         "wrapperCmd": {
                             "type": "object",
                             "markdownDescription": "Wrapper Command\n\nSpecifies a custom command to wrap the `RUCALLTST` command.",
@@ -984,6 +999,11 @@
                     },
                     "markdownDescription": "Exclude\n\nObjects to exclude"
                 },
+                "proxyCmd": {
+                    "type": "string",
+                    "default": "",
+                    "markdownDescription": "Proxy Command\n\nSpecifies a command to substitute the `CODECOV` command."
+                },
                 "wrapperCmd": {
                     "type": "object",
                     "markdownDescription": "Wrapper Command\n\nSpecifies a custom command to wrap the `CODECOV` command.",