Thank you Scott your help. I could add custom action with the link you provided.I have one question though on the other approach (Solution - 1) mentioned in http://experience-aem.blogspot.in/2015/04/aem-6-sp2-touch-ui-open-component-dialog.html.  I tried this but it is still not working for me.Does ...

Hi,I am trying to add a custom action to the component toolbar as shown below.I could find a documentation for AEM 6.0 mentioning the steps. I tried that, it did not work and then component dialogue is not opening up. Followed following steps in AEM 6.3.Created a node of type cq:EditConfig under cq:...