I have a wireframe in Balsamiq.
I know how to link to another screen.
I would like to click a button and open a popup on the same screen. Is it possible with Balsamiq?
Unfortunately, this is not something you can achieve in our little tool which has low interactivity on purpose, as detailed here: https://blogs.balsamiq.com/ux/2011/06/17/why-we-arent-doing-interaction/
The Linking feature is indeed the best way to achieve this result in Balsamiq Mockups.
Please let us know if you need anything else, we're here to help! (support@balsamiq.com)
-Virgin from Balsamiq