Table cell selection problem

The table head is selected with a mouse or keyboard, but if there are merged cells, there is a problem that the following few lines cannot be selected. So, is there a way to select at once?

Workaround tip:

  • Use a narrow auxiliary (non-merged) column on the right or a low auxiliary (non-merged) row below the two rows. Then you will be able to select the two rows (together with the auxiliary cells)

If a low auxiliary row, it can be merged.