Most incredible ideas ever for future improvements!!!
IDEA NO 1
Base design share option between clan members(elders, co-leader and leader only)
IDEA NO 2
Temporary leadership promoting options with customized permissions(If i am a leader and for some reasons i couldn't make it in game for few days then I must have an option to give my leadership to one of the clan members but at the same time i must have the right to rejoin the game as a leader again whenever i want to)
Cant see any benifits with either idea to be honest why would you need to share base designs ? And if your offline for a couple of days surely your clan can last without someone else being made leader not having a go at you and no offence intended