Sharewinfo organization chart - how to respond to filters

[travissk]

I'm very happy that a visualization like the Sharewinfo organization chart is finally available in Power BI. However, it appears that, for this visual, only columns (not measures) can be used in the ID and Parent ID fields and the root node must be blank. This means I cannot figure out how to set up a people leader filter that will put a mid-level manager at the top of the org chart (i.e. "a partial view" of the org chart). Can someone tell me how to do this? This would be simple if the visualization accepted the highest-level Parent ID as the root node rather than requiring the root node to be blank.

Two other requested enhancements for this visualization - the watermark needs to be removed and tooltips doesn't seem to work.