Provide Variable Explorer

Part of the difficulty I've had in leveraging Ketarin comes from trying to sort through the various variable syntax, esp as I've transitioned more to powershell. I know there are options to output to host, but to improve the development action, I'd love something like what Visual Studio offers in the Build Steps of a project, "macros" that lets you review list of all variables and their current values and then "build" a statement. This would help.

Simple example.... even after reading documentation I missed that I could use {file:directory} to simplify 7z commands unzipping downloading a file with a varying name. Took over a year of usage before I found this out and it greatly simplified my scripts.