I have a .img file created by reading an Anytone 588UV. 

I have another .csv file I want to use to populate the 5888 file. 

In my .csv file, all the channels are 'split' in the Duplex Column, and the absolute frequency shows in the offset column.

If I paste the data from the .csv file into my CHIRP .img file: 
  1. my only choices become '-' or '+' in the Duplex Col of the .img file for the 5888, whereas they were 'split' in the .csv file
  2. and in the Offset col the simplex channels are blank in the Offset column, and the repeater channels  have been transposed to an offset value rather than an ablsolute value.
Is this because CHIRP will not allow 'split' as an option for duplex because of the radio model number for some reason?

Regards,
John