Question: open Context Menu using multiple Content in 1 View Type

I have an Problem, and i hope to solve it via keymapping but its also refer to skinning
So, im not sure if that is the right place.

My Issue is, that i have 2 Viewtypes which are used to show ...
  - TV Show - Seasons - Episode (TV Show Level -> toggle "watched" (using  "w" key ) -> will toggle whole Show, independent which id has focus )
  - Seasons - Episode (Season Level -> toggle "watched" (using  "w" key ) -> will toggle whole Season, independent which id has focus )
... by using <content> Tags.

Everything fine with the views Itself, but i cannot open "ContextMenu" easily.
- i can open it when using Touch Device, or Device with an Trackpad or Mouse [Default Action = <Right Click>]
- i cannot  open it when trying default Action, "c" via Keyborad  [ Default Action = <contextmenu>]

Example Video , showing, that the Menu IS AVAILABLE (using Trackpad, right Click)


That leads me to the Keymaps.
But Using <rightclick> as an global keymap action , force "Back" instead of "open Context Menu"

So it seems, even if iam Focus the items, it doesnt work until i "focus" them with Mouse/Fingers.
I hope someone can help me out here, or lead me in the right Direction.

Default Kodi Keymaps

Touch:
Global - Context menu - Single finger tap and hold or two finger tap

<keymap>

<global>

  <touch>

    ....

     <longpress>RightClick</longpress>

     <tap pointers="2">RightClick</tap>

    ....

</touch>

</global>

Mouse:

<mouse>

   <global>

    ...

      <rightclick>rightclick</rightclick>

    ...

    </global>

</mouse>

Keybord

<keymap>

<global>

  <keyboard>

   ...

   <return mod="longpress">ContextMenu</return>

   <enter mod="longpress">ContextMenu</enter>

   <c>ContextMenu</c>

...