If you just use ?flush=all when visit a page it will delete all template caches. There's no need to go mucking around with manually removing cache folders.

I'd prefer not to - but I've got in this habit - I really dislike adding the prefix for each one of several pages I might have several clicks to get the page is there a way to do it automatically? or refresh everything at once?

I expected dev/build/flush?all to build everything but it doesn't seem too - I've never looked into it - just found a quick easy method to completely clear the cache when I want. The ?flush=all on each page will rebuild all nested templates?