Legacy Dynamic Lighting question

Hello, I've just purchased Curse of Strahd from the Marketplace after a hiatus from roll20 as the desire to DM has bubbled over once again. However, I've been gone long enough that I've stumbled into the whole dynamic redesign, and I'd like to use the legacy version that I'm familiar with while it's still available. I've already created the game and imported the module, but it seems like that configured things for the beta dynamic lighting. Do I need to create an entirely new game and enable legacy dynamic lighting in the game settings before  importing the module? Or is there a way to switch systems without going through every map's settings individually? Will the legacy dynamic lighting objects/lines even still be there?

I just created a test game from that module. The settings all appear to be set for Legacy. Note that you will see UDL options, still, should you wish to try them out, but they are toggled off by default. LDL and UDL settings are currently both available in all subscriber-level games, though they do not work in concert. Use one or the other. Currently, LDL is stable and UDL is under development. I would stick with LDL unless you are testing and would like to provide feedback.

You know, I picked a few of the maps at random and looked at their settings, and it looks like I managed to pick only those that didn't have dynamic lightning preconfigured. I see now that "LDL" is enabled on the maps that make sense to have it , thank you!