How to unload/ end an ARA Integration from the Audio Editor?

I’m sure I’m missing something, but how do I close Wavelab or Spectralayers after activating them as ARA tools in the Audio Editor section? I’m just looking for a button to disable or unload them (CubPro14).
Clueless and would appreciate any help.

Audio/Extensions/Remove extension from selected part

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Grim, thanks so much !