Solved
Tree Table widget not visible in thingworx 8.5
I imported tree table widget successfully but after refreshing the thingworx composer it does not appear in the widget section please help to resolve the issue?
Maybe the steps from thsi post: https://community.ptc.com/t5/ThingWorx-Developers/Can-t-find-Paging-Extension-after-I-installed-it/td-p/658221 will help