Split levels in to separate dgn ( or dwg) files?

From what it sounds like you are describing, you could create a "script file" that starts with a list of all the levels and then adds in steps to isolate each level and (using a fence) save that out. Something like this:

active level "text"
of=*
selview 1
place fence allfiles
selview 1
fit view extended 1
ff="textDGN"
selview 1
on=*
selview 1

The above example sequence assumes the level (text) has something on it and uses view one throughout the sequence. You can use that as the "template" for your specific file, which you would need to iterate for each level. You would also need to determine what each filename is that you want to create -- "textDGN" is just an example here... that gets saved to MS_DEF. Further, you can concatenate all that into one statement (each "command" separated by a semi-colon):

active level "text";of=*;selview 1;place fence allfiles;selview 1;fit view extended 1;ff="textDGN";selview 1;on=*;selview 1

First off  run the compress function from File > compress> options select all then run compress design

This will help get rid of unused levels

now from the level manager > export 

This will give you a csv table you can manipulate to extract all the level names

you can then use this to create the above script  mentioned by phil earlier post,  over and  over  using excel to  change which level is on next and what to call the new file

then export this out as a  script file..then run the script

but personally I would  just use the level manager by hand to scroll through the lelves and  level display manager to turn all off . set first level  on, then

us this keyin

 fit view extended;%d; place fence design;%d;sf=    

( which I would  add to an F key say F1  just for this job... put back to help latter or make  a new F key menu and edit  that)

Then once I have the right level on, run the F key use the  levelname thats on to name the export and save out  the contents

( SF=  removes all in fence to new file where FF just copies contents)

Then delete the level from levelmanager

and make the next level  on and repeat the F key to extract the data and repeat the process

If I had to do this for many files then yes I write a script for each one using the extracted level names...

Even with 200 level names I think I could do faster manually for one file and  F key rather than writing the script for one file...

First off  run the compress function from File > compress> options select all then run compress design

This will help get rid of unused levels

now from the level manager > export 

This will give you a csv table you can manipulate to extract all the level names

you can then use this to create the above script  mentioned by phil earlier post,  over and  over  using excel to  change which level is on next and what to call the new file

then export this out as a  script file..then run the script

but personally I would  just use the level manager by hand to scroll through the lelves and  level display manager to turn all off . set first level  on, then

us this keyin

 fit view extended;%d; place fence design;%d;sf=    

( which I would  add to an F key say F1  just for this job... put back to help latter or make  a new F key menu and edit  that)

Then once I have the right level on, run the F key use the  levelname thats on to name the export and save out  the contents

( SF=  removes all in fence to new file where FF just copies contents)

Then delete the level from levelmanager

and make the next level  on and repeat the F key to extract the data and repeat the process

If I had to do this for many files then yes I write a script for each one using the extracted level names...

Even with 200 level names I think I could do faster manually for one file and  F key rather than writing the script for one file...