Is there a way to allow users to select, or appear to select, multiple cells in a Table Box, or is there a different object I could use instead? To illustrate the use case, a user might want to move the pump tags from the left table to the right starting on row 2 in the image below. How would they select the block of cells to copy and then paste them?

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New Window( "Editing a data table",
Show Menu( 0 ), Show Toolbars( 0 ),
h list box(
Table Box(
String Col Edit Box( "PI Point", Repeat( { "" }, 5 ) || Transform Each({v},as list(transpose(1::15)),"Pump1-" || char(v)) ),
String Col Edit Box( "Friendly Name", Repeat( { "" }, 5 ) || Transform Each({v},as list(transpose(1::15)),"Name " || char(v)) )
),
spacer box(20,20),
Table Box(
String Col Edit Box( "PI Point", {"sinusoid"} || Repeat( { "" }, 14 ) || {"Valve1", "Valve2", "Valve3"} ),
String Col Edit Box( "Friendly Name", Repeat( { "" }, 15) || {"Inlet", "Outlet", "Recirc"} )
)
)
);
Scripting the copying and pasting the values should be straight forward, but the user needs to indicate where to get data and where to put it.
The Actual Use Case
I want to improve the Aveva/OSISoft PI Tools add-in interface by replacing the text box entry for tags and friendly names with a data table, as discussed on an issue in github. Often users have a list tags in a JMP table or a spreadsheet, and they want to quickly copy/paste them into the add-in user interface. Simply copying the entire table at once is easy enough, but then if a change is needed they might want to just replace a section of the list.
With the Table Box object it doesn't appear a user can select multiple cells, is there another option here? At one time I thought you could embed an entire data table window inside of a user defined window, but maybe I dreamt that.
So far my best idea is some sort of mouseover logic that draws squares over 'selected' cells, but I first want to see if there is a simpler solution.