Shortcut menu
Context menu
shortcut menu
2 chainz
It is a list of commands, called a short-cut menu.
Right Click
quick access toolbar
Shortcut menu
I think it's called the drop bar or drop screen or drop something
You can right-click on an appropriate object to select a command, then right-click to execute the command. You can click on an icon to execute some commands.
Yes, it appears after you click on it.
It doesn't usually, it would just show you options as if you clicked on the area outside of the scroll bar
Show the Roblox studio tools, and click Insert --> Objects. Then, select "Script" from the list of items that appears and hit okay. You can now double-click on the script in the explorer window to open it for editing.