Hi,
welcome @Anonymous.autodesk.com!
Run command _BEDIT, select the block which contains the attribute you want to change.
Within the blockeditor you can then select the attribute and modify it's size, close the blockeditor with saving (now you are back in modelspace), run command _ATTSYNC, type in the blockname to synchronize (same blockname you had opened in blockeditor) and let _ATTSYNC do it's job to update all insertions with that name.
You'll have to do that once for every block-definition (but not once for each insertion) 😉
HTH, - alfred -
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Alfred NESWADBA
ISH-Solutions GmbH / Ingenieur Studio HOLLAUS
www.ish-solutions.at ...
blog.ish-solutions.at ...
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CDay 2026------------------------------------------------------------------------------------
(not an Autodesk consultant)