Maximum call stack size exceeded

[mrehorst]

In creating new design for my sand table I often stack warps and noise effects. One thing that happens frequently when doing this is I get the "maximum call stack size exceeded" message:

Once this message appears, everything I did prior to the error message is lost.

1. Is there anything I can do to expand the call stack size?
2. is there any way to display the call stack size limit and how much has been used so I can creep up on the limit without exceeding it?
3. is there a way to recover my work before the stack size was exceeded? The "reset pattern" option doesn't help at all.

Thanks!