How to play vst instrument in max

zhuang jiahan's icon

I'm using a vst instrument(Pigments) and I don't know how to control it correctly on the outside of the plugin.

As shown in Fig ,the input part is copy from 'vst~ help', when I press and hold the ksilder, note are only triggered once. How can I do that as long as I hold down the button the note will play.

Appreciate