The template for the DS-102 2 Gang didnt work for me exactally as expected.
Both the buttons would just turn on the same blue led on the first switch, the second switch led always stayed off.
After alot of messing around and trial and error this is my template which work as expected for me.
My modified template
{"NAME":"DS-102 2 Gang","GPIO":[158,57,0,17,22,18,0,0,0,21,56,255,0],"FLAG":0,"BASE":18}
Your template
{"NAME":"DS-102 2 Gang","GPIO":[56,58,0,17,22,18,0,0,0,21,57,255,0],"FLAG":0,"BASE":18}
Maybe you can offer my template as an alternative version to try if yours doesnt work for others.