An html editor popup action allowing to bind an external stylesheet. Allows either to refer to it using
<link href="..." rel="stylesheet" type="text/css" /> tag
or importing it by
Could the "Insert code" (Ctrl+I) action be used for this?
sure, insert code is an option, though not sure if that would be straightforward enought. The insert link action seems
to be more similar to "import class" than to insert code.