Is it possible you could make TNAP 4.1 to act as the Openpli? i mean to start scan AND move the motor with the OK button?
Btw, if i copy-paste the whole Openpli 8.1 blindscan plugin folder into /usr/lib/enigma2/python/Plugins/SystemPlugins in the TNAP 4.1.... do you think it could work? or is not as easy as that