Is there any way to save the settings in custom module?I assigned some command to the button,but when I close cakewalk and reopen,the settings will be restored to default 

What command are you trying to bind to the Custom Module button? This may help in answering your question.

Grem
What command are you trying to bind to the Custom Module button? This may help in answering your question.

 view- tempo   / transpose  /fit to time

At work at the moment. Let me get home and try that out. Are you try to fit one trk or more than one trk to timing?

When I go to the menu under Title bar (up top left) View/Tempo it opens the Tempo map in the Multidock. No option for  "Fit to Time"
 
When I try to assign a this to the Custom Module I get the same as above "View/Tempo" and that's it.
 
And when I looked at all available commands for the Custom Module, none had " view- tempo   / transpose  /fit to time"
 
I have found the "Process/Fit To Time" is this what your talking about?
 
[edit] I have assigned "Process/Fit To Time" to a Custom Module button and it works. When I open another project, the command is still assigned to the button I assigned it to.
 
HTH
 
 
 
 

Are you using a lense by any chance?