Dyno - Presets/Tooltips

Hello,
Anyone using Dyno Browser able to change button descriptions/tooltips? I have been using Dyno Browser and have button files set up for a while, but only recently have I got the presets working successfully and cannot seem to get descriptions to work. Here is my preset file:

{
“presets” : {
“ELECTRICAL Views and Sheets”:{
“forceReopen”:false,
“EXCEL SHEET TAB”:“ELEC”,
“desc”:“Create electrical views and sheets”
},
“MECHANICAL Views and Sheets”:{
“forceReopen”:false,
“EXCEL SHEET TAB”:“MECH”
},
“MEP Views and Sheets”:{
“forceReopen”:false,
“EXCEL SHEET TAB”:“MEP”
},
“ARCHITECTURAL Views and Sheets”:{
“forceReopen”:false,
“EXCEL SHEET TAB”:“ARCH”
},
“STRUCTURAL Views and Sheets”:{
“forceReopen”:false,
“EXCEL SHEET TAB”:“STRUC”
}
}
}

Thanks!