Change font size by display output

Dear all,

its possible to change the size format of the output display.

I have this situation:

PRINT-CONTROL SIZE 3 FONT 5.
  Write: / 'TEST 1:',ls_bkpf-belnr.

  PRINT-CONTROL SIZE 10 FONT 5.
  Write: / 'TEST 2:',ls_bkpf-belnr.

in the display I will see:

Heading 4: TEST 1.

Heading 1: TEST 2.

is this possible ?

best regards