Thanks for the quick response. With your help, I have discovered the problem:
I am running Bodhi, which relies of LPS versions. I am essentially running Ubuntu 12.04, next update is this April.
I used Synaptic to download gdigi; according to the repository, this is gdigi version .02. This explains why I have only one selection under Preset, which is store. I do not have 'save preset to file' or 'load preset from file' that you suggested I use. It may also explain why I cannot program the expression pedal on my RP355, which was a recent update to gdigi.
The latest gdigi version is .04. Do you have a PPA I could use to update my current version? Do I need to wait for the update in April, or is there another way. Thanks for your help in advance.
FYI, I did try the instructions for downloading/installing via the .tar file, but had run into dependency problems. When I saw your program available in Synaptic, I went that recommended route. I will try what you recommend, though I am already pretty far into re-programming my pedal, version 2 works well for this except for the expression pedal programming which I haven't proven a work-around for.