yeah, non combat move’s are allowed as of the turn order, a national power can only be attacked when it is their defensive round,
this gives unit’s at most 4 non combat move’s a round,
the rule for unit’s that were in combat is the same, whether it is a defending round or attacking round,
in theory an aircraft could attack, land, attack, land, non combat move, attack, land,
for moving once per round i would use the defending non combat move,
except in the situation where reinforcement’s are placed at the start of a combat round, in which case i would allow these reinforcement’s to be moved at the non combat move,
for using the 1 move per round, i would use combat marker’s and movement marker’s to identify what unit’s had attacked or moved that round, at the check for victory phase remove all the marker’s,