Could the "highlight manager" window be a side panel?

[ghost]

The current state of the extension, if I'm using it correctly, is to open a new window every time a highlight is made. I think this window occupies a huge portion of the screen. I understand that you can open in it on a new tab, but, as mentioned, every time you make a new highlight this window opens again. It is annoying. In so being, could it be a side panel instead?

[ghost]

Furthermore, I can't find a way to move this window.

[fastaddons]

The window is movable by dragging the top-bar (it is only a few pixels high, I should upgrade that).

The side panel would be possible to do, but sadly only in Firefox as Chrome doesn't have side panel for extensions:
https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/sidebar_action#browser_compatibility

So we need to think of a different solution.
There is a relatively new context menu item called "Add 'xxx' to existing rule" which adds the selected word to the existing rule without opening the whole window. But this option is available only for rules with "Each word" option enabled.

[ghost]

Thank you for your response. This image of the side panel was taken from an Edge window. And I can't move the window on Edge, I've tried.

[o-data]

I see that the latest version you preparing for the new Firefox Manifest, not sure if v3 affect this issue #14 in a good or bad way.

Can't seem to see any article making mention of Side Panel, so information probably hidden away in the official developer documents.