Selecting item from Item view list

[DQ]

I need help.  My employees are complaining that  if item A is selected and if they select item B, it selects both items instead of deselecting item A.
I know this is a feature which allows to cancel/modify multiple items at one time but would like to implement this.

What is the best way  to implement this?

[emre]

TicketViewModel class has a boolean property named as "ClearSelection" . When enabled it selects only clicked items. Additionally you need to find the part where ClearSelection = false and make it true again after it toggles selection.

But I don't recommend it because you won't be able to split tickets too.

[DQ]

I did not find "ClearSelection" flag. I am using 2.99c code base.