import function question

[jmmfr]

Hello.
I am using the import function sometime, as a base, and found that the strict requirement for the exact type of general does not allow if only one is missing. The data file is text, and can be easily tailored for another general but the hash value will not allow it either. I may be missing something.
In case it is not, could it be possible to include a case "gen missing, pick a new one in the list ?"
Other possibility, regenerate the hash value with a new general added ?
Thanks for this great work.