@CJeon Thanks for submitting your suggestion. @Jen is correct in that, currently, you will need to configure your pop-up edit forms through the Edit Link option within your components.
We will certainly keep this in mind for future developments. Community members, if you are interested in this functionality, please like this post. 
@CJeon I also see that you created a suggestion for pop-up details pages as well. If anyone within the community has found this post and is looking for more information on pop-up details pages, check out this post here.