The web HMI it a great idea and works really well. But it would be nice if you had a couple more things you could tweak like for instance the push button behavior. You click it on then click it off. If I wanted to start a custom function up you would want a button that stays on for only 1 scan cycle. And the HTML calls for java script stored on web servers. it would be nice to be able to alter that code a bit if you had the smarts and upload it with the HTML file if you want to sacrifice a bit of memory. And some DIY guides on the java script key functions etc.