Collapsed block of text and Tooltip.

Hey,

I have some locations in my document that I'm using SpanIndicators to color text and I also display a tooltip when the user moves with the mouse on these locations.

In case that the location is the first line of a collapsed block (with + sign) the tooltip won't be shown. when the block is expanded and we have a mouse over event - the tooltip will shown.

How can I show the tooltip although when the for locations in the first line of the collapsed text ?

Thanks,
Dan