Custom Deck Construction Time (> 30 mins)

This is a feature request, feel free to close if its not feasible as there are work-arounds though they're a bit contrived

The group that I play with is toying with the idea of having a sealed draft open during the work day and gradually, slowly, building our decks so that at the end of the day we can duel without having to wait for each other to build decks. I can't seem to set the Deck Construction Time past 30 minutes tops, which makes sense given that's the legal limit in competitive paper, but was wondering if it's be possible to have this limit either be arbitrary or have a max time limit much larger than 30 minutes. I understand there might be issues with timeouts stemming from larger time limits.