Grow parameter like col or vertex group with geometry-nodes

Possible to grow data from selected points or proximity data to next and next points by time node
like in C4D

@higgsas has a fantastic collection of group nodes which includes a node for expanding/shrinking a selection which could be useful for your problem.

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There are many tutorials on Blender Proximity on Youtube… search this >>>
Blender Geometry Nodes Proximity <<<

This one is similar to whatever the video you showed is doing…

this is not similar. I need a grow effect

Thanks!!! So many great nodes!!!

Do not thank me, thank @higgsas.