Production Switchers

I'm a little confused with the editing mode options for a project in Xpression. 

We normally do productions in either 1080p 29.97 or 1080i 59.94.    I was surprised that 1080p 29.97 was not a preset for new projects, but more so that 1080i 59.94 was not an option at all.   Why is that? 

I made a custom project preset for 1080p 29.97, started project, then changed switcher's video mode to 1080p 29.97.  But after loading some clips, I had some issues and had to reboot.  Is there a specific set of steps for changing video modes in Graphite? 

Thank you,

Hey guys, just an update here for anyone also wondering.  I reached out to supports and was informed: 

- If doing a production in 59.94i on my switcher, I should choose 29.97i on Xpression project. 

- V9 of Xpression will come with a project preset of 1080p 29.97 

And I tried my custom project of 1080p 29.97 again, and did not have issues.  So that is working. 

Cheers.