Show Attribute Table - default and choices

katmckee[CodePlex]
I am testing 1.6.11 downloaded today. I did a search, it returned a bunch of EPA Storet stations.

I clicked Show Attribute Table, nothing happened.
I was confused...
Then I clicked on the spatial layer in the legend, and tried again.
Then it showed the table...
That stumped me for a while. I forgot I had to select the layer!

I only had one layer selected/checked.

Can we change so that if user clicks on Show Attribute Table without a layer selected the system:

shows table of stations for the layer that is checked - if only one layer is checked?
if more than one layer is checked, it prompts them with a list of Data Site networks to choose from?

Reproduce the Show Attribute Table action with no spatial layer selected, then inspect the legend's layer-selection behavior and the station results. Done means one checked layer opens its station table automatically, while multiple checked layers present a Data Site network choice instead of doing nothing.

Written by the indexing model from the issue text.