Thank you guys for your comments and sorry for the delay. As some of you suggested to post the code of my question i attached the file. Actually i have 2 problems:
1- I want to use one tab control for numbers 4 and 5 in the listbox so when the user click any of 4 or 5 , the default values of the tab control change.
2- I couldn't make the items in listbox active so when the user click in any of them ( surview,Body,MPR,...) the related tab control shows up and the button next to that item lights up( become yellow). In my example, it only could be done by clicking on the buttons next to the items not by clicking on the written items.
Thanks
listbox.vi