  We study adiabatic charge pumping through a quantum dot placed at the
junction of $N$ quantum wires. We explicitly map out the pattern of pumped
charge as a function of the time-varying tunneling parameters coupling the
wires to the dot and the phase between any two time varying parameters
controlling the shape of the dot. We find that with $N-2$ time-independent
well-coupled leads, the maximum pumped charge in the remaining two leads is
strongly suppressed with increasing $N$, leading to the possibility of tuning
of the pumped charge, by modulating the coupling of the $N-2$ leads.
