for JS8 Mode you have to insert the JS8/MFSK in modelist.csv. The file i referred to above
is only for the rapports showing in dB instead of RST.
If you open modelist.csv you will see these MFSK mode as in the following example for FT4 ...
That means if you like to insert JS8 you have to use JS8;JS8;MFSK;JS8 .... JS8Call is not a modeFT4;FT4;MFSK;FT4
or a submode it´s the softwares name.