Merging two (or more) graphs, from separate graphml files

Question

It would be nice to be able to merge two (or more) graphs, startiong from separate graphml files.

Comments

I've made an account just to upvote this.

Use case: we have graphml files in our Git repository. Very simple changes merge okay. But if someone groups nodes, updates the layout or similar, regular merge tools don't cut it anymore.

Answer 1

Open both graphs in yEd, then use CTRL+A to select everything in one of the two graphs and use CTRL+C, CTRL+V to copy/paste the selected graph into the other graph.

Comments

I'd like this feature too but with a 'merge nodes' facility.
This would merge nodes with the same label, for example convert a unconnected graph (or graphs) with nodes N1->N2  N2->N3 into N1->N2->N3

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Another user who needs "merge nodes" functionality here :)

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Copy data from graph to graph isnt an option - its stupidity. Merging graphs by for example nodes would allow cooperative work - For example in 'global view' u can see every graph and make connection by IP domain or something, but editing data would be allowed only for one section - by locking system or something like this.

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Having a merge feature would be very useful. The copy and paste would not work when you have 5000+ features with overlap.