Change dynamic panel state with mouse wheel

Cloud File : https://d0w9iv.axshare.com

RP File : https://drive.google.com/file/d/1DM38IUUyqDXk4N429D4Thb5koFWTq3J9/view?usp=sharing

When the scrolling wheel is move the panel state jumps from beginning to end and viseversa. But I want to change the dynamic panel state with every mouse wheel command. Pls somebody help me