Biosemi 64 10/20?

Hello,
I want to learn how to use brainstorm to perform my EEG analysis, I use a Biosemi 64 10/20 system, in the default settings this parameter does not exist, how to do?

Thank you

To start using Brainstorm, start by reading all the introduction tutorials in the section “Get started”, then read the tutorial “EEG and Epilepsy”.
http://neuroimage.usc.edu/brainstorm/Tutorials

For your cap, I guess the default cap “Biosemi 64 10/10” is what you need, no?