What you are after would require a lot of changes to either of the DMD libraries (DMD or DMD2) if you want all the library features. You did not say which library you would like to use.
If you just had a limited number of static displays you could possibly use
this approach.
There are other threads in the 'Dot Matrix Display' area which may also help you.
This one gives some details on how the DMD and fonts work.
I have used the original DMD library in the past and modified it quite a bit to suit my particular needs for particular projects so may be able to provide some assistance there.
Another approach might be to use 2 DMD displays to achieve a 32x32 array. Others have done that with more details available on this forum.