I just discovered this product and I am evaluating it for further use. Unfortunately, there doesn't appear to be a way to select a particular edition to evaluate. As an independent developer, I can almost assure you I will not be purchasing the Enterprise version. However, there's no way to "trail" anything short of that and I feel this makes the trial somewhat ineffective: I can't evaluate and consider any version of the product I may actually consider purchasing. I'm guessing the design goal is to convince prospective buyers to spend more money; however, it's more of a turn-off than an encouragement.

My suggestion is to either install an Edition modifier, obviously only available when Trial Mode is active, that allows users to upgrade/downgrade the application to the edition they wish to trial or offer separate installers.