For very small BOM trees (5-10 total leaf nodes) Engineering Workbench is a pretty decent implementation given the constraints of web development.

But if you get a more complex BOM tree, it grinds to a halt. Takes significantly longer than Visual BOM screen (which is effectively doing the same data pull).

Also, if you move the slider too fast, it will “lose” it’s tree icon details (though the extra columns stay) and struggle to repaint; sometimes browser locks up.

This happens on multiple browsers, clean cookies, etc.

Are there optimizations I can take advantage of to make this usable?

Also, as an improvement request, since it doesn’t allow adding children to a subassembly (which seems like a strange implementation constraint, but I think I understand why it was done) could we get an easy “double-click to drill-down” option, or at least expose a “navigate to this BOM” on the leaf node’s  “…” menu. 

Very concerned that Visual BOM is being deprecated when this isn’t close to being production ready.

-Matt