This is a viewer toolbar replica for Fusion 16, in case you missed for fancy mask buttons and instant fit/100% buttons, DoD etc. Not all original tools are implemented: no normalise or SMR buttons. But those shown at the screenshot are working in Fusion 16 as expected.
It is set up to left view initially, but you can switch between left and right viewer with buttons.
This toolbar is based on Andrew Hazelden's UI Toolbar sample script, I just mapped some buttons.
Launch the script with SHIFT+ALT+T shortcut. UI opens under the left viewer plus TimeVew offset. You can optionally set to open at the mouse pointer position.
https://gitlab.com/WeSuckLess/Reactor/t ... .Toolbar16

UPDATED to latest screenshots and tool version 2.3