Unrecognized function or variable 'dipfitdefs' at line 895

[AndiMcGrunt]

Description

When attempting to access Edit>Channel Locations for a loaded dataset, a window pops up:

https://docs.google.com/document/d/1xGMY04vQpQF1iUkWFeGFRFVb1Qtz1SG5RizPmGapE2A/edit?usp=sharing

#### Steps to Reproduce

1. Import EEG dataset using BIOSIG from EDF/EDF+, etc.
2. Select channels from EMOTIV dataset - selecting only channels 7 8 9 10 11 12 13 14 15 16 17 18 19 20 (out of 54 total) using Edit>Select data
3. Confirm correct channels selected using Plot>Scroll data
4. Edit>Channel locations to configure for EPOCX headset - after clicking Channel locations from Edit menu, the error box pops up

#### Expected behavior: Instead of error box, I expected another box to pop up to allow me to upload a .ced file and verify channel locations by plotting 2-D and 3-D plots
#### Actual behavior: Error box, unable to configure channel locations
#### Versions Windows 11 Matlab version R2025b EEGlab version 2026.0.0