3 Test Question

Hello,

I am building a file that has 3 different tests that branch out to 3 different scenes when selected. I would like all tests to appear in the normal state, but I want them to be able to take the tests in order - starting with Automation. I can't figure out how to make it so they can't click the other tests first. Each test when finished, goes into a desabled state so they can't go back into the test. I can't upload the whole test due to client confidentiality, but I have an example.