

How can i add multiples sources to my backup,
I try to add folders & files + plugings backup for my softwares but when i scroll the menu my checked box and added files / folder are not saved .....
i select files & folders

i select others sources with the menu (Chrome plugin):

i come back to my folder & files to save to add an other :

It's empty ....!!!
and the others selection are not saved (Chrome plugin):

Can you help me !

Is it one by one source backup ?
Thanks