MATLAB: How to reshape cell of characters to a different cell size of characters

reshape cell

I have this cell, which is a 32400X8, I want to reshape it to 259200X1, put all columns underneath eachother in the first row, keeping the output a cell.
I have used, Category = cat(1,cc{:}); but the output is character. I want it to be cell, as it is. thanks in advance.