Can I modify my deck type after creation?

I just started playing Wargame: Red Dragon (seven years late to the party) and I wanted to experiment with stylized decks. I opted for a BLUFOR motorized deck because I thought the bonus for motorized infantry would be useful. After testing the deck in an offline skirmish I realized the lack of superheavy Main Battle Tanks available for motorized decks is a critical weakness.

I tried to change my deck type to allow for all vehicle types and didn’t see any option to do so. I could create a new deck but it seems tedious to copy all of my existing unit cards just for the opportunity to add one or two superheavy tanks while I plan to keep most of the other units the same.