Update forms / update feedback with Canvas

Update forms / update feedback with Canvas

Hello,

when I use buttons to update Values of fields on my Canvas (eg. Select fields), is it possible to get any update feedback other than 

  1. showMessage(text, options)

The value on the Canvas won't update, I can't use ZDK.Page.getForm().setValues and I didn't find anything else to give the user feedback, that a field has been updated.

Any good option there?