There should be an easier way to copy gestures that perform the exact same task in the exact same manner for multiple apps.
I am fairly sure that BTT used to include a feature that made this job somewhat easier, but as it stands now, if, for example, I want the gestures I use in Chrome available for me in a newly installed Chrome Canary, I have to drag each shortcut one by one from Chrome to Canary. I can't even select multiple shortcuts at the same time and this becomes enormously tedious as the process continues for all different input methods, keyboards, trackpads, etc.
As it stands now, I generally deal with this situation by exporting my preset, and copying the BTTTriggers json into the newly added app, and then reimport the data as a new preset, making sure to delete the preceding preset. Needless to say this process can become unnecessarily messy.
While in an ideal world, we could create a single bundle to allow us to group and sync similar gestures for similar apps (browsers are the most obvious use case). However, honestly, just being able to drag multiple items (eg., all the keyboard gestures) from one app to another would really make it a lot easier.