Just Panels was made for creating quick panel surfaces in Blender, combining a specially made addon with a library of over 300 assets for hard surface modeling. It draws on KITOPS inserts, DECALmachine decals and MESHmachine plugs, and a recent update added 3D printable panels.
The collection covers 140+ template panels and 50+ detailed panels for KITOPS, 40 decals and 25+ slice panels for DECALmachine, plus 10 screw heads with DECALmachine, MESHmachine and KITOPS variations. The included addon lets you create your own panels, so you're not dependent on the addons above.
Just Panels has assets for KIT OPS 2 PRO, KIT OPS 2 FREE, MESHmachine and DECALmachine. Its default hotkey is ALT + K and can be customized in preferences. The developer provides a Documentation tab, linked install tutorials and a Discord server for support, and the product runs on Blender 2.93 through 3.6 under the GPL license.