[Koha] Batch edit to control fields?

[Cab Vinton]

Hi, All --

Does anyone know if the Batch record modification tool can handle
control fields? -- specifically, changes to various positions in the
leader, 008, etc. We're trying to update the 008/33 in a large number
of records.

I've tried creating an action for this under a MARC modification
template, but it seems to be expecting standard fields & subfields
(i.e., it won't accept a 2 digit number to represent a position).

We can always export to MarcEdit, but if we can do this from within
Koha, that would be great.

All best,

Cab Vinton, Director
Plaistow Public Library
Plaistow, NH