test manager suites copy to 1 project to another ....

I have created a Test Plan, lets call it Test Plan 1, under which I have my test cases.

I want to re-use my test cases in Test Plan 2, so I create a new test plan, called Test Plan 2, then I use the "copy test suites from another test plan" facility to copy my test cases from Test Plan 1 to Test Plan 2. All well and good, except its not. The test cases in Test Plan 2 are the same as those in Test Plan 1. If I go into Test Plan 1 and modify a test case, the modification also appears in that test case in Test Plan 2. This is evident as the test cases have the same ID.

What I want is to keep my test cases as they are in Test Plan 1 but make a copy of it/them that I can edit and keep separate in Test Plan 2. There doesnt seem to be a way to do this. It seems like a major oversight to me. Of course it is possible to right click each individual test case and select "make a copy and add to suite" that will give the copy a new ID, but thats at the test case level and is massively incovenient.

Tags: C#, TFS, VSTS, Testing