EA settings and Optimization

Hi. I’m having a tough time understanding some settings and and the correct ways for proper optimization strategies. I’m currently working with Ilanis and Saad Scalper. What does the term Step stand for in settings?. how do u optimize for different pairs to run at the same time and what magic number to use? Thank you any info is much appreciated.

SAAAD scalper uses martingale. Ilanis may do the same or use grids, not sure though.

both grid and martingale use steps to decide the next orders entry in order to lower/raise the average price of your trades. the steps are how many pips until the next order.

magic numbers are so EAs can identify their trades and if necessary manual trades or those placed by other experts.

what do you mean by" how do u optimize for different pairs to run at the same time’?