Longer editing possibility for thread creator

Hi,

is it possible to allow the creator of a thread to edit his post for a longer time?
I have started a build thread work-in-progress. After the third “edit” I now have no further editing option, but have to copy the original content.
It is difficult for a later reader to then find the current state of the build between posts.
And the initial post is unfinished without a hint

thanks for a short reply