Merge Cells in a word Table
I had this issue but I find the solution:
merge cell (get cell from table 1 row <startRow> column <startColumn>) with (get cell from table 1 <endRow> column <endColumn>)
MacBook Pro 13", macOS 10.14
The solution is in the question:
merge cell (get cell from table 1 row <startRow> column <startColumn>) with (get cell from table 1 <endRow> column <endColumn>)