The title says it all. Currently, placing down objects is a nightmare. You have to click the object, drag it into the scene, and then again and again and again and again and again.
I think that just clicking the object and then clicking down in the spot of the scene where you want the object to be placed will improve gdevelop usability a lot.
You could copy the object that you want to place down and just paste it wherever you want. But, something like what you asked will be useful