Healing with resources

for example you have a light tank which has %50 morale you need to wait for days to regain morale

ıf you lose %50 of your tank crew and tanks at brigade how you can bring them back without doing anything ???

why we dont spend resources and manpower to increase its morale it is like upgrading spend some resources and manpower to regain morale I have two idea for this

first : you can spend your resources and manpower to heal where located your unit and this unit cant move for a time like upgrading

second : firstly you need to pull back your units to cities for example ıf you have a %50 morale light tank brigade you need pull back it to city which has tank plant and after this you can spend resources and manpower to heal

it cant move before heal completed ıf you have artillery it will go ordnance foundry ıf you have infantry it will go to barracks

we need manpower and resources to heal so ıf you havent enough gold ıf you have a good economy you can heal your units