Arbitrary RESTful API trigers
We have additional software (not just OBS) that would benefit from controls in Web Deck. This software (OpenLP) has a REST API to enable remote control. By default they supply a webpage interface that can deliver these API calls, but it requires switching tabs between WebDeck and the control panel regularly. Using the "Open Browser" command in WebDeck technically works, but opens a browser window for every press of the command.
A REST API command option should, at a minimum, work much the same way as the Open Browser command but without needing to open a browser with every command. Optionally, an advanced mode might allow you to store auth tokens and host details then create commands relative to those.
Thanks for your idea! External plugins could do it perfectly :) I'll keep you updated in this issue.