Cannot change Scene resolutions [Button Greyed out]

I’m stuck on trying to create my own Resolutions when creating a new scene in Harmony SE12.

For some reason the create button is always greyed out, no matter what I do.

Has anyone experienced this problem?

I’m running Harmony on OS X Yosemite.


Has anyone answered this because I’m having the same issue and this seems to have been posted 5 years ago. I’m using harmony 20