Thought I'd add a bit of 'caution' when using Whole House (WH)Models with XL4.2.2:
I had been using several WH models to sequence, but when that feature was removed I didn't think it would effect my sequencing. They still worked if you had created them before the change. All's good!
But I had to make a few Model changes (change channel number to get more out of the current set of controllers). As you know, the WH models were "off" because of the channel numbers were changed. Curtains and Fans. etc. in the WH models were effected. So I convert all of my WH models to Model Groups.
Model groups work great and are resilient to model mods. I changed all of my WH models to Models Groups and all is well. Took no time at all. I've since made mods to a model and the change was transparent to the sequence.
Thanks for the Model Group feature !! REMEMBER TO BACKUP before you make any changes!!
BTW: a quick explanation of grid size would be helpful: default is 400x400 pixels, the model groups can change that?