Merge remote-tracking branch 'XTUPLE/4_4_x' into 4_5_x
Merge remote-tracking branch 'XTUPLE/4_5_x' into 4_5_x
Issue #23590: GridBox line items add on enter
got skipped test to work
code cleanup
Added grid box test
add documentation
Merge pull request #1473 from lynnaloo/23590

Issue #23590 - Changes to grid box to add new line on enter