Blocks

[edparcell]

Blocks represent subcomputations. Can add a copy of an existing computation as a block. Need a way to link existing nodes to inputs of a block (or between blocks). Idea is to allow blocks to be expanded/contracted when drawing. Blocks can contain blocks - they form a tree structure. May be necessary to remove/repurpose group.s Blocks are namespaces - same node name may appear in multiple blocks.