Suppose I wanted to open a couple of bookmarks in my browser. To do this, I use the menu bar. I click on «Bookmarks» to reveal the dropdown with all my bookmarks and then select the bookmark. The dropdown closes and the browser opens the bookmark. Now I have to click on «Bookmarks» again and click on another bookmark, the dropdown again closes and the browser opens the bookmark. Is there a way to keep the menu dropdown opened after I clicked on an item? That way I could click multiple items in the dropdown way faster! I remember being able to do this in Windows XP some years ago and it was really handy. I think I had to hold down ALT when clicking on the menu item.
Thanks for any advice!
Edit for clarification: I'm only using the bookmark menu as an easy to understand example. I'm looking for a way to do this system-wide!