For the Matrix and the Table Visuals (and others), tooltips simply show the value of the item over which the Pointer hovers. The behaviour of the tooltips differs from PBI Desktop to Browser in Term...
Just an addition point to this. It's great that we are able to have Tooltips on Matrix's now, but I am trying to get the Tooltip to show when I hover over a Row Header, Currently I'm only able to get a Tooltip when hovering over a Value. Any Ideas if there's a way around this or if it's in a backlog up introduce?
