Support remembering files/folders for later comparison

Let us consider two different projects named Sample1 and Sample2, each containing Test1.txt and Test2.txt, respectively.
**Current Behavior (to compare):**
1) Select Test1.txt in Sample1 and press cntl button.
2) Next, select Test2.txt in Sample2: In the right click context menu -> compare with-> Each other (it will open compare editor for comparison).

**Expected Behavior:**
1) Select Test1.txt in Sample1: In the right-click context menu -> "Select file for later comparison."
2) Next, select Test2.txt in Sample2: In the right-click context menu -> "Compare to Test1.txt."
3) Then it should open in compare editor for comparison.

I have seen this support in Beyond Compare and other IDEs.