Game-Jam-Kit (quick first draft)
Addons for jaming out games;
AssetShelf - Moving addons between projects (the idea being that 2d,3d,audio etc could be re-used as modules and keep in sync)
LemonShop - Draw in the sidebar and quickly drag sketches in as a pshysical objects without configuring nodes and collision shapes.
Deadline - Timemanagement and planing view with common aproaches as templates or something (I barely remember)
elegantGDScript - Editing scripts (?)
Paint - Draw in a bigger view with brushes that connects to pressure and/or midi signals
Drag and drop (addons/dnd) is a way of importing code snippets that can then be edited as code.