Hi all: Lately I've taken look at the available material re Boost SoC Generic Tree container, and find many parallels in what I am trying to attempt here at work (with seemingly one exception, see query below), and making good headway with a relatively robust and generic design (, though I'd hate to be reinventing the wheel). However, what I could not pick out is whether or not the proposed tree can or intends to support a node owning multiple parents(?) Apologies to all others for the noise, but I wasn't sure where else to post the question. Cheers, -- Manfred Doudar - Research Engineer National ICT Australia - Canberra Research Lab | www.nicta.com.au Research School of Information Sciences and Engineering (RSISE) The Australian National University - Canberra, ACT 0200 AUSTRALIA