No, or at least not without a change in the way the viewer processes asynchronous server messages. Please, post a JIRA issue to ask for LL to work on this issue. I have myself no time available to invest in this, sorry.
This feature was implemented (and still exists) in the v1.1x branch of the Cool SL Viewer (long before Meerkat even existed...), but it was not kept after v1.20, because of the large changes it would require to be properly implemented (as it is, it's an ugly hack). LL was supposed to work on such a feature. Not sure how much they actually worked on it...