Try this it, worked with -attedit, so it might work with the new command. Pass the command a list of the attribute's ename followed by the block's ename.
Edit: This may not work, as shown with this little bit of code from the command line.
Command: (progn
(_> (setq blkent (car (entsel)))
(_> (setq attent (car (nentsel)))
(_> (command "-attedit" "" "" "" "" (list attent blkent))
(_> )
Select object:
Select object: -attedit
Edit attributes one at a time? [Yes/No] <Y>:
Enter block name specification <*>:
Enter attribute tag specification <*>:
Enter attribute value specification <*>: Select Attributes:
Command: nil
but if done from the command line it works, as shown here
Command: -attedit
Edit attributes one at a time? [Yes/No] <Y>:
Enter block name specification <*>:
Enter attribute tag specification <*>:
Enter attribute value specification <*>:
Select Attributes: (list attent blkent)
(<Entity name: 7efcdf98> <Entity name: 7efcdf90>)
1 found
Select Attributes: *Cancel*
Now I don't know what to say..... :ugly: