Where should 'uninstall' button be placed?

I was trying to add a uninstall button in plugin dialog to uninstall a plugin. Where should i place this button, currently there are exist only one button to install which is mapped to update button ? So what should i do now ? What can be the best ways to put update install and uninstall actions.
https://tickets.metabrainz.org/browse/PICARD-1177 this is jira ticket link . Any suggestions will be highly appreciated.