Splom with custom hover text for each mini plot

Is it possible to give each unique facet within a splom it’s own custom hover text? I’ve been playing with this reproducible example:

and I see I have unique text for each of the 150 points by looking at documnt.getElementById("myDiv").data[0].text but I’m wondering if I could change that text specific to each little plot? For example can I have the first plot point 0 say “Custom String” and the second plot point 0 say “Other String” or do the points have to have the same hover text in every facet?