The point is that the context menu often opens under the mouse pointer instead of next to the mouse pointer. When the menu opens under the mouse pointer, a random menu item is selected, and when I release the mouse button, the menu item is clicked. This causes randomly pasting blocks from the backpack or other things from the menu. The solution would be to set the right mouse button to only open the menu, but not to select items from the menu. There should only be a left button to select items from the menu. Is there any way to do this?