yup the f8 and f9 dont work, after you start construct, then use one rss, then activate and cant use anymore rss at all
AAAHHHHHHHh i found out how to make the F8 instant building work !. First make a building but do not add any resources, then step a way back from it so you cannot see the letter E for rss adding, then activate f8, then step closer, and whoala ! it will instabuild itself