Becoming unselected after "Place Marker"

After a piece places another piece via the “Place Marker” trait, both pieces are still selcted. Is there a way to unselect the placing piece after the placement? Invoking a key stroke after the placement (for example to have the placed piece move a fixed distance) does not do the trick.

Actually, I fail to find any way to change the piece property “selected” via a Key Command.

Substitute a different property instead, would that work? For example, have a dynamic property of “Selected2” (for lack of a better name) in the marker, with the piece that placed it applying a “keystroke to apply after placement” triggering Selected2 on in the marker piece. Then have some easy, behind-the-scenes way to trigger it back off in the marker once you no longer need it (like once it’s moved, or another piece is moved, or another piece has Selected2 triggered on, or whatever…). Hope this makes sense.

No really. Whatever keystroke is applied to the placed piece seems to apply to the placing piece as well.

If you’re trying for something like wanting a GKC that when activated sends a command to whatever piece is currently selected, or, the marker piece that a selected piece has just created, then I believe that can be done. You’d want a prototype with a new dynamic property, a global property tied to that (these together would override the default “Selected” property), and a clearly defined way to shut these down after being activated by the placing piece and no longer needed. Then your GKC would become a Multi-Action button instead, with two GKC triggers… the first would choose the default “Selected” piece, as long as the global isn’t activated, and the second would choose the piece with the dynamic property active if the global is activated.

No, it is much simpler. I want to move with the mouse the piece that just popped up and I hate it to move the placing piece as well when forgetting to click somewhere else before.