I have a simple Material UI table, that will have what looks like a header cell in it's last column. However, I would like that this last header share the column with the header right before it.
Think of it like this: it will be 4 headers on the top, but only 3 columns, and the last two headers share the same column.
Not sure if I am making sense, so here is a sample app to illustrate what I mean.