This part of the template uses the tags [ and ]

[heading] (undefined top region)

[heading] (defined region 1 at top level)

Table 1
Col-1 Col-2 Col-3 Col-4
[col1] [col2] [col3] [col4]
This part of the template uses the tags { and }

{heading} (defined region 3 at top level)

{heading} (defined region 4 at top level)

Table 2
Col-1 Col-2
{col1} {col2}