Collage for 4K WallPaper (or the ability to create a custom size?)

[goiubig10]

Greetings all.  Has anyone figured out how to create a collage in the 4K resolution (3840 x 2160)?  I'm trying to create some collages for a slideshow on my 4K TV's and can't seem to find this resolution.  There's a resolution for 1080P (1920x1080) but nothing for 4K or 8K.  I love some of the collage features in this software and how easy it is, but not having either a 4K/8K or custom resolution size for collages is a deal breaker for me.  Otherwise, I'd buy the software.  Is there something I'm missing?

[elk]

Sadly, the program does not offer options to create collages for 4K and 8K. The only options you have are the ones you can see in the drop down menu and it is not possible to select a custom resolution. NCH Software formally takes suggestions or feedback about products through the form at http://www.nch.com.au/suggestions/