For creating a browser that refreshes automatically have a look at GLMPresentation>>#wantsSteps, GLMPresentation >>wantsAutomaticRefresh, and GLMPresentation >>stepTime.These just use the stepping mechanism from Morphic. For this to work you'll need to create your browser in a subclass of GLMCompositePresentation and override #step. GTInspector>>step is an example.

If you want to enable refresh in the inspector use GTInspector class>>enableStepRefresh. Then you need to configure your extension using #wantsAutomaticRefresh:. For the moment this will just work for #fastTable and #fastList presentations. I can tell you what you need to add to Glamour if you are using other presentations.