A Resonite mod that allows you to open a component attacher even if you don't have anything selected in an inspector panel.
art0007i-RemoveComponentAttacherRestriction-1.0.0.zip) from the Releases page.plugins folder to your BepInEx folder in your Resonite installation directory:
C:\Program Files (x86)\Steam\steamapps\common\Resonite\BepInEx\