Affinity Photo: long side pixel size on slices

[Pixla]

Hi,

 

I love the concept of the export persona in Photo.

 

Surely we've all been there where a large raw file has to be repurposed for many things. I feel this is the idea behind the slices in the export persona?

 

But in this case I want to be able to limit the long edge of a slice so that I don't have to re-scale the exported slices in another step. It kind of feels like it should be there already, so am I missing something (I'm new to the apps)?

 

So, in the export options, for instance in the JPEG preset, I'd like to see:

 

Long edge: px and maybe % options

Sharpening (I use quite different values depending on size and purpose)

dpi

 

Thanks!