Unlock all research or lock it again so you can research it all again.
Completes and unlocks all of the things that can be researched. This will allow you to build everything. You may need to open and close the research or build menus for this to apply.
Locks all of the things that can be researched. You will need to research everything again. This won't lock things that you start with at the start of the game. You may need to open and close the research or build menus for this to apply.
Makes all research free when enabled.