Not exactly. Within a character, spaces between dits and dahs are controlled by the keyer, as they have to be since the keyer will send a string of either. You have to operate the paddles in sync with the keyer or you'll not get the correct number of dits (too few or too many), and maybe even an extra dah in iambic mode. May keyers can be set to auto space between characters. If you pause longer than the space between dits and/or dahs in a character, the keyer won't send the next dit/dah until 3 spaces (the normal character spacing) has transpired. Again, you got to be in sync with this or the next character will have to many or too few dits/dahs at the start.