Base Project Vars/Scenes/Tasks Only

An option in the settings to Enable/Disable Project-Only Elements.

The idea is that when this option is turned on, while in the menu for selecting the required Variable/Scene/Task, only the ones in the current project will be shown rather than showing all the Variable/Scenes/Tasks available in the whole.

This would come very handy for people with large number of projects so that they don't have to search within a large number of other Vars/Scenes/Tasks to select the one they desire.