cursors, etc

[BCBOOKER]

Is there any way for a user to actively move a cursor or some other marker on a
plane?  That is, if there is a 4x4 square with the cursor at (1,1), can the
user press up, n, 1 or whatever and make the x increase?  I tried making
something along the lines of this, but i had to go type in every situation -
that is, make the map for (2, 3) or (1, 2).

I'm a newbie to programming as a whole, so please excuse any nievete that this
message may exude...

cb