I've tried holding down the key assigned to both reverse select and alternative reverse select (not sure which one you meant in the mod description) while using the chunk eraser tool, but I cannot get it to work deleting chunks with player entities. No issues with deleting chunks without player entities, but the tool selection area doesnt even show up when i hold shift and drag the tool. Tried pressing shift after I highlighted an area and that doesnt work either. Any help would be greatly appreciated - really need for deleting pesky fulgora chunks with the naturally generating fulgora lightning attractor which for some reason is classed as a player entity.

The control you should use is "alternative reverse select" in the controls menu. I think it might not default to shift in the most recent version.

I actually checked, & is the "Select for deconstruction cancellation" control, not the "alternative reverse select" control. I added this to the mod description.

Thank you so much for the help!