1. An image processing apparatus comprising: an input device for a user to set a sequence of instructions for a function to be carried out by the image processing apparatus; a recorder which records the sequence of instructions set by said input device with information relating to the sequence of instructions as setting log data; a calculator which calculates a weight parameter on reuse value of the sequence of instructions based on the recorded sequence of instructions, wherein the weight parameter on reuse value relates to the likelihood of using the sequence of instructions in the future; a storage device for storing operation information including the setting log data and the calculated parameter; a decider which decides based on the setting log data stored in said storage device whether the weight parameter satisfies a reference value; and a presenter which presents the setting log data having the weight parameter satisfying the reference value.