Can the downlink / column merge be supported？

[JZHculver]

Like the above

[wcjordan]

We don't currently support this directly, although it may be achievable using CSS on the cell renderer. We have discussed doing this in the future but need to work out a good API for specifying it. Let me know if you have any suggestions.

[JZHculver]

At present, we also use the CSS style to solve this problem!
In a column, the first three lines need to be merged, and can only render the first line at the time of rendering, and his height is the sum of the three lines. The rest of the two lines do not render or occupy positions. Is it feasible?

[wcjordan]

I'm not sure I follow, but you could use the row index to determine if it's the first row and style differently.