Multiple file selection for deletion

I own a PTH-460 and these are my current settings for my pen. My question is that in Lightroom, when I select multiple files to delete, the act of the right clicking deselects the selected files and is now showing one. This, I assume is because when my pen tip rests on the multiple selections and I Right Click, the deselection occurs. Now I can use my mouse, select multiple files and then right click and delete so why can't iIdo it with my pen?