In theory it would work but would require a bit more editing than that.
You'd first need to create the league in Liechtenstein as you mentioned, then you'd need to explore the 'catchment' and 'qualification rules' for the cups. Would probably require messing with the countries co-efficients to put the Liechtenstein league high enough up the pecking order to qualify.
Without looking at the editor i can't say more but i'm 100% certain it CAN be done though, the editor guide being developed at the moment will certainly help with this so keep an eye out for that.
Good luck.
You'd first need to create the league in Liechtenstein as you mentioned, then you'd need to explore the 'catchment' and 'qualification rules' for the cups. Would probably require messing with the countries co-efficients to put the Liechtenstein league high enough up the pecking order to qualify.
Without looking at the editor i can't say more but i'm 100% certain it CAN be done though, the editor guide being developed at the moment will certainly help with this so keep an eye out for that.
Good luck.
1