Change What the (+) Does in a Now Experience Workspace

[Mark Endsley]

I have created a Now Experience Workspace in App Engine Studio for one of my custom apps. It did a pretty good job so far, but it appears the behavior of the New Tab button (The +)

Is still showing the options for our default workspace. I do not want users of this workspace to be able to create incidents or interactions. Instead I would like it to open the record producer of this custom app.

How can I modify these options?

App Engine seems to want to push me towards the UI Builder, but I don't see any options to modify this there.

[Mark Endsley]

I will give that a try Tarun, thanks!
I think we tried this before, at first it appeared to work but much of the form functionality would throw errors.