How do I set image origin when add animation frame with Event?

When I use the "Add animation frame" action, the new frame's image point always defaults to the top-left (0,0).

Is there a direct way to set this image point to the center of the frame (e.g., 32,32 for a 64x64 sprite) using events?

I'm specifically looking for a solution that avoids having to pin it to a separate "container" or parent object. Is there a built-in feature for this that I might have missed?

See this post:

construct.net/en/forum/construct-3/how-do-i-8/possible-change-position-186359

I submitted a feature request for this, please upvote the request:

github.com/Scirra/Construct-feature-requests/issues/573