The only 1-PC option I've seen is for 1 Year?, why is F-Secure Anti-1-PC!?! 
Please consider adding up to a 3 year 1-PC License? & Especially BIG! Incentives for 'Renewals'?, your Returning Customers should be Very Important to you?, Please show it?. 
TY. Ron. 
Comments
Hello!
Sorry that you have been waiting already some time. Thank you for your new idea. We will evaluate it and our Product manager will comment it later on.
Cheers
ElseH
F-Secure Community Manager
TY ElseH & Welcome back!