GDB's? We can't access those in Axe yet, so I'll assume you mean groups.
Groups, however, are for multiple variables, and we can't write them.
So let's do it with appvars
(Note that we could save it to a Pic, actually, though we'd either use two pics or use a non-standardly large one (If you RecallPic these in BASIC, only the first 768 bytes are drawn)
So let's call the appvar appvETCHSAVE. This example writes L3 and L6 to the appvar if it doesn't exist or is in RAM
"appvETCHSAVE"->Str0
If GetCalc(Str0,Y0)
.Check if it's in the archive. Make sure you aren't using Y0
Disp "APPV ARCHIVED
Return
End
.The following line will create it if it doesn't already exist, and recreate it otherwise
!If GetCalc(Str0,1536)->X
.Check if there was enough room for the appvar to be created
Disp "OUT OF MEMORY
Return
End
.1536 is 768*2, or the size of both buffers
Copy(L6,X,768
Copy(L3,X+768,768
.Copy L6 and then L3 into the appvar. Each buffer is 768 bytes in size
Return
If you need to archive it, (I recommend not to in order to save wear and tear on flash, but that's up to you) use
Archive Str0Which will Archive the appvar if there was enough free archive and return 1, or return 0 if there wasn't enough archive space.

Yeah we can't work with GDB's, not to mention they are in a very specific format and are used to store window settings and equations. Storing two pics just wouldn't work
Good luck!

That'll be my first time in the credits of... anything O_O
* calcdude is honored
I think I'll try out the updated version after it's on ticalc.org

Attachment?
What do you mean? For the credits?

Oh, my bad
I'm afraid not, though I might if I ever do other hardware stuff.
What kind of bug is there now?

sry about this, but I am bumping the topic with this post requesting for help.

if you would run my eas program mentioned in an above post then check the source code for the error i would appreciate it.