To clarify do you want to place a clip between two other clips for instance?
If you want to do that drag the clip onto the timeline where you want it between the others whilst holding Ctrl and release. The clips following it will be moved forward. You can even do this partway along a clip and it will split it and move the rest forward. Everything else will be intact.
I’ve done a quick test project using some footage I had already and it works fine as far as I can tell.
Hope this helps.
