how do you specify a minimum step size in simulated annealing

In the function simulannealbnd, is there some way to force the step size of the variables you are optimizing to be some number. For instance, if I have a function:

% error function erfunc = @(xi) max(func(xi));

% initial input xo = 300; lb = 100; ub = 500;

% optimize as xf = simulannealbnd(erfunc,xo,lb,ub);

Can I make simulannealbnd search in steps of 5?