Hi - if the scripting name of the gate is 'my_gate' then you can call:

this.patcher.getnamed( 'my_gate' ).int( val );

which will send the int 'val' to the gate object (i.e. open that outlet)

don't know if you can target an inlet specifically, not something have needed to do so far

Thanks Lee, presumably .float works as I expect as well? Could you point me to the relavent documentation?

Nice to hear someone making decent dance tracks on the forum too!

thanks for you kind words :)

if you look at the gate documentation, float and int are treated the same..., both will select the gate outlet...

if you pull up help in max, type in javascript into the search, then scroll to the bottom there should be a 'Javascript in Max' section - open this up and then there are a number of sections describing the js objects and what calls/properties they have. the bit relevant to this is at the bottom under the 'Maxobj methods' heading...