Please consider to offer the option of sorting by "Rowindex" without having to create one explicitly. The current sorter only offers to sort by "RowKey" (called RowID everywhere else), and in the current string-based row naming scheme without leading zeroes this leads to the "order" of Row1, Row10, Row1000, Row2, ...
How should it work when there are different naming schemes of the row keys? (Like: versicolor_21, Versicolor_3, versicolor.21, ...) (Sort by row index would be no change in case of ascending (as row index is always the index from the first row) or the reverse in case of descending.)
Indeed special naming makes sense sometimes, but all these (frequent) times that I just need to put a table back into its original order I'd love to have the RowIndex, gladly in addition to the RowKey/RowId.