Something possibly missing from the instructions is that you need to spend resources or at least start building/training units for the options to work.
[Edited by Alogan19, 3/24/2019 2:08:22 PM]
not sure what you are specifically saying but this is directly from the game instructions..
Fast Construct Buildings:
Start construction of a building then toggle this on.
Fast Produce Units:
Start production of a combat unit then togglet this on.
Fast Research:
Start the process of researching an item, then toggle this on.
best,
Cal