Modify Tool, adding a - at end of prefix adds it to point number. Can no longer remove from prefix

[aamisU8ZY4]

Hello, 

I recently was modifying point prefix's and added a "-" to the end of my prefix for instance the point number was 1000. I added a PNL- prefix with the modify tool. I can no longer remove the - from the prefix. It appears to have become part of the point number which I can not easily modify. Is there a way to fix this? 

Thanks 

[s.hamel · Accepted solution]

Unfortunately no, since some users make use of negative numbers in their workflows, the decision was made to all for the -, and APL has no way to determine what was desired, a negative number or a dash at the end of the prefix, so it always assumes it is part of the number.  If you are still in the same session of Revit/ACAD, Undo is your option, otherwise would need to renumber.  If you don't care about the existing numbers, you could certainly use the renumber tool to get them all positive again, then adjust the prefix to use _ instead.

Thanks,