diff --git a/packages/insomnia-smoke-test/tests/smoke/pre-request-script-ui.test.ts b/packages/insomnia-smoke-test/tests/smoke/pre-request-script-ui.test.ts
index facc1e602f..d47bfeb5d8 100644
--- a/packages/insomnia-smoke-test/tests/smoke/pre-request-script-ui.test.ts
+++ b/packages/insomnia-smoke-test/tests/smoke/pre-request-script-ui.test.ts
@@ -85,7 +85,7 @@ test.describe('pre-request UI tests', async () => {
             },
         },
         {
-            name: 'environments/ envrionment from script should be overidden by folder environment',
+            name: 'environments / envrionment from script should be overidden by folder environment',
             preReqScript: `
                 // "customValue" is already defined in the folder environment.
                 // folder version will override the following wone
@@ -98,6 +98,29 @@ test.describe('pre-request UI tests', async () => {
                 customValue: 'fromFolder',
             },
         },
+        {
+            name: 'variables / manipulate variables and set them to environment',
+            preReqScript: `
+                // set local
+                pm.variables.set('varStr', 'varStr');
+                pm.variables.set('varNum', 777);
+                pm.variables.set('varBool', true);
+                // has
+                pm.environment.set('varStr', pm.variables.get('varStr'));
+                pm.environment.set('varNum', pm.variables.get('varNum'));
+                pm.environment.set('varBool', pm.variables.get('varBool'));
+            `,
+            body: `{
+                "varStr": "{{ _.varStr }}",
+                "varNum": {{ _.varNum }},
+                "varBool": {{ _.varBool }}
+            }`,
+            expectedBody: {
+                varStr: 'varStr',
+                varNum: 777,
+                varBool: true,
+            },
+        },
     ];
 
     for (let i = 0; i < testCases.length; i++) {
diff --git a/packages/insomnia/src/sdk/objects/environments.ts b/packages/insomnia/src/sdk/objects/environments.ts
index fe426f99fb..9ed42f4cc2 100644
--- a/packages/insomnia/src/sdk/objects/environments.ts
+++ b/packages/insomnia/src/sdk/objects/environments.ts
@@ -34,3 +34,79 @@ export class Environment {
         return Object.fromEntries(this.kvs.entries());
     };
 }
+
+export class Variables {
+    // TODO: support vars for all levels
+    private globals: Environment;
+    private collection: Environment;
+    private environment: Environment;
+    private data: Environment;
+    private local: Environment;
+
+    constructor(
+        args: {
+            globals: Environment;
+            collection: Environment;
+            environment: Environment;
+            data: Environment;
+        },
+    ) {
+        this.globals = args.globals;
+        this.collection = args.collection;
+        this.environment = args.environment;
+        this.data = args.data;
+        this.local = new Environment({});
+    }
+
+    has = (variableName: string) => {
+        const globalsHas = this.globals.has(variableName);
+        const collectionHas = this.collection.has(variableName);
+        const environmentHas = this.environment.has(variableName);
+        const dataHas = this.data.has(variableName);
+        const localHas = this.local.has(variableName);
+
+        return globalsHas || collectionHas || environmentHas || dataHas || localHas;
+    };
+
+    get = (variableName: string) => {
+        let finalVal: boolean | number | string | object | undefined = undefined;
+        [
+            this.local,
+            this.data,
+            this.environment,
+            this.collection,
+            this.globals,
+        ].forEach(vars => {
+            const value = vars.get(variableName);
+            if (!finalVal && value) {
+                finalVal = value;
+            }
+        });
+
+        return finalVal;
+    };
+
+    set = (variableName: string, variableValue: boolean | number | string) => {
+        this.local.set(variableName, variableValue);
+    };
+
+    // replaceIn = (template: string) => {
+    //     const context = this.toObject();
+    //     return getIntepolator().render(template, context);
+    // };
+
+    toObject = () => {
+        return [
+            this.globals,
+            this.collection,
+            this.environment,
+            this.data,
+            this.local,
+        ].map(
+            vars => vars.toObject()
+        ).reduce(
+            (ctx, obj) => ({ ...ctx, ...obj }),
+            {},
+        );
+    };
+}
diff --git a/packages/insomnia/src/sdk/objects/insomnia.ts b/packages/insomnia/src/sdk/objects/insomnia.ts
index 230aa29f91..a9f5e688c8 100644
--- a/packages/insomnia/src/sdk/objects/insomnia.ts
+++ b/packages/insomnia/src/sdk/objects/insomnia.ts
@@ -1,33 +1,59 @@
 import type { Request } from '../../models/request';
-import { Environment } from './environments';
+import { Environment, Variables } from './environments';
 
 export interface RequestContext {
     request: Request;
     timelinePath: string;
     environment?: object;
     baseEnvironment?: object;
+    collectionVariables?: object;
+    globals?: object;
+    iterationData?: object;
 }
 
 export class InsomniaObject {
     public environment: Environment;
     public collectionVariables: Environment;
     public baseEnvironment: Environment;
+    public variables: Variables;
+    // TODO: follows will be enabled after Insomnia supports them
+    private _globals: Environment;
+    private _iterationData: Environment;
 
     constructor(
         rawObj: {
+            globals: Environment;
+            iterationData: Environment;
             environment: Environment;
             baseEnvironment: Environment;
+            variables: Variables;
         },
     ) {
+        this._globals = rawObj.globals;
         this.environment = rawObj.environment;
         this.baseEnvironment = rawObj.baseEnvironment;
         this.collectionVariables = this.baseEnvironment; // collectionVariables is mapped to baseEnvironment
+        this._iterationData = rawObj.iterationData;
+        this.variables = rawObj.variables;
+    }
+
+    // TODO: remove this after enabled globals
+    get globals() {
+        throw new Error('Globals is not supported yet');
+    }
+
+    // TODO: remove this after enabled iterationData
+    get iterationData() {
+        throw new Error('iterationData is not supported yet');
     }
 
     toObject = () => {
         return {
+            globals: this._globals.toObject(),
             environment: this.environment.toObject(),
             baseEnvironment: this.baseEnvironment.toObject(),
+            iterationData: this._iterationData.toObject(),
+            variables: this.variables.toObject(),
         };
     };
 }
@@ -35,13 +61,26 @@ export class InsomniaObject {
 export function initInsomniaObject(
     rawObj: RequestContext,
 ) {
+    const globals = new Environment(rawObj.globals);
     const environment = new Environment(rawObj.environment);
     const baseEnvironment = new Environment(rawObj.baseEnvironment);
+    const iterationData = new Environment(rawObj.iterationData);
+    const collectionVariables = new Environment(rawObj.collectionVariables);
+
+    const variables = new Variables({
+        globals,
+        environment,
+        collection: collectionVariables,
+        data: iterationData,
+    });
 
     return new InsomniaObject(
         {
+            globals,
             environment,
             baseEnvironment,
+            iterationData,
+            variables,
         },
     );
 };