Hi Kayla,
I was pretty much in the same situation as you, a year or two ago. This is the workaround I'm still working with:
I only present the choices in the dialogue, let's say
1 Yes please.
2 No way!
3 Something completely different.
Next, I create sprites shaped like a 1, 2 and 3 and put them in the current room, next to the avatar. I give the sprites exits in their dialogues so when the player runs into them (= making their choice), it takes them to a new room/the next part of the dialogue.
It's not as straightforward as having a selection to choose from in a dialogue window, but it's the only thing I could make work.
Hope this helps!