wondering this as well. i use the command, and the effect icon in the top right confirms that i entered it correctly, but it seems to have no effect

I found out what it does, using global rec -number makes the global recruitmrent time go down. so you can make it so it'll take only one turn to recruit stuff

example of how to use:

[ global rec -4 ]

this will bring the total turns required to recruit the unit by four turns. there isnt a way with the console command mod to raise the number of global recruitment points you have, other than building the building that specifically increases the number for the faction being played.