Combine tables

Use the Paste command to merge two or more tables into a single table.

In the target table, insert at least as many blank rows as you’ll be pasting from the other tables. (If you insert fewer rows than are copied, you cannot paste.)
In the source table, select the cells you want to copy. (If you copy more column cells than are available in the target table, you cannot paste.)
Select at least one cell where you want the incoming rows to be inserted, and then choose Edit > Paste.

If the pasted rows use different formatting than the rest of the table, define one or more cell styles, and then apply the cell styles to the pasted cells. Hold down Alt (Windows) or Option (Mac OS) while clicking the cell style to override existing formatting.