RBE Node Selection

Hello,

I would like to create a RBE between a node in a center of a hole and the surrounding nodes. However I do NOT want to select nodes on the bore wall which is often done because it's easy to select these nodes 'by face' (Attachment left picture). I would like to select nodes in the plane of the center node with a specified radius  (Attachment right picture). Is there any script available? Is there any quick manual way? Only way I could think of is to create a circle geometry around the center node and select nodes by geometry and using the created circle.

Hope anyone can help.

Thank you in advance.

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