Adobe Portfolio: Customizing Page Cover Grid

[#1]

I'm looking into switching from Squarespace to Adobe Portfolio. I've been playing around with AP today, and I noticed all the themes have a grid format for the pagecovers. I wasn't able to figure this out on my own, but I'm wondering if there is a way I can have columns with page covers of different aspect ratios rather than the perfect grid layout that all the themes have. 

Squarespace does this really nicely (see attached image), and since my works varies in aspect ratios, it's important for me to have this option. Even if you adjust the page covers so there is no cropping, it still doesn't look as nice as Squarespace's "auto column" feature

[#2]

I'm looking into switching from Squarespace to Adobe Portfolio. I've been playing around with AP today, and I noticed all the themes have a grid format for the pagecovers. I wasn't able to figure this out on my own, but I'm wondering if there is a way I can have columns with page covers of different aspect ratios rather than the perfect grid layout that all the themes have. 

Squarespace does this really nicely (see attached image), and since my works varies in aspect ratios, it's important for me to have this option. Even if you adjust the page covers so there is no cropping, it still doesn't look as nice as Squarespace's "auto column" feature

[#3]

You need to go to the links below for Portfolio help
https://help.myportfolio.com/hc/en-us/requests/new?ticket_form_id=177168
https://helpx.adobe.com/creative-cloud/how-to/create-portfolio-website.html
https://help.myportfolio.com/hc/en-us/articles/216489627-Manually-configuring-a-custom-domain
https://help.myportfolio.com/hc/en-us
https://portfolio.adobe.com/themes
https://portfolio.adobe.com/
And Lighrtroom Integrations
https://blogs.adobe.com/jkost/tag/portfolio
https://lightroomkillertips.com/getting-images-lightroom-adobe-portfolio-just-got-lot-easier/
https://digital-photography-school.com/create-beautiful-online-gallery-lightroom-classic-cc-adobe-po...

[#4]

No, not on the main Collection or landing page.  If you look at the 12 Portfolio Themes, all Cover Images are the same height/width, throughout. 

https://portfolio.adobe.com/examples

However,  PhotoGrid images may vary somewhat.

https://help.myportfolio.com/hc/en-us/articles/360035920114-Photo-Grid-module