How to add device using the new app using device handler I already imported?

Hi - in this new app all I seem to get is this huge number of brands, type, etc. But I need to pair something which is only available thru a custom DTH and BTW which I already have imported into my profile using the graph-api and published it.
I remember in classic was able to select which device handler I want to associate something with. Can’t find that option anywhere now.

In the Classic app, you would use Add Device and if needed change the device type in IDE.

In the new app, click on + (plus) in the upper left, choose the by brand tab and use Scan nearby at the bottom of the screen or use the z-wave button. If needed, change the device type in IDE.