It would be good if you could write your caption here before you copy you tags so you can see how it look with caption and tags together. And ever be able to save standard-basic captions along with different collections. And that is has a word count so you can´t write to much text.

This way you don´t have to write your cations in one place, copy the hashtags from here, paste it in the other document, copy it together with the caption and then post it.