is it possible to Add Multiple Scenarios in Test Plan Jmeter?

Question

I have 100 virtual users, and 3 script. I need to assign 20 users to 1 script, 30 users to 2nd script and 50 users to 3rd script …

Questions:

1. How to Add 3 Scenarios(Scripts) to single Test Plan?
2. How to assign load Distribution to 3 scripts (assign 20 users to 1 script, 30 users to 2nd script and 50 users to 3rd script)

Answer 1

Use Include Controller to use your scripts (read the doc and use Test Fragment in included scripts)

To assign load distribution just use Throughput Controller and use percentage for example to distribute load accross all users.

Each Throughput Controller will contain the Include Controller for 1 script.