Removing Borders, Changing Font, Background Color, etc.

Hi guyz,

I have 2 structures (1 in row and 1 in column). Just want to ask if it is possible to have the cyan-colored cells in COLUMNS to be the main header of the 5 columns next to them?

Like:

If not, can I remove the borders in the columns of the cyan-colored cells?

Like:

Also, can I change the color of the cells under ABC, DE, and FG?

Like:

Is it also possible to change the font size, font style, etc?

Where is this possible? In Web Application Designer or Query Designer?

Thank you!

Loed