CT recon notebook UI: buttons to switch to select OB and DF files from arbitrary folders
Created by: yxqd
Right now if /INSTRUMENT/IPTS-##/raw/ob(df) exists, it is assumed that OB(DF) files are in that directory. There is no way to choose OB(DF) files from other directories. This PR add buttons to switch to a panel to allow choosing from arbitrary folders.
Fixes #100 (closed)