A useful feature is to use .dump()
on variables you are using in the console to get an idea what properties are available.
For events, they have a banks
array for every bank they are assigned to. You can iterate through this to build only those particular banks. For example
var event = studio.window.browserCurrent(); // Gets the currently selected event in the browser
var allBanks = event.banks;
allBanks.forEach(function(bank) {
studio.project.build(bank.name);
});