Pin or Freeze Chart TAB

Hi T212 Tech,
When a use open new equity chart Tab, the first tab at the most right is pushed to the second tab, if a user open another chart tab, the current tab right most is pushed to the second, causing the previous chart to gradually pushed off the view of user.
Suggestion is that user should have the ability to freeze a tab that remain constant as right-most, if max tab is 3 and user freeze 2, any new tab should only replace the unfreezed. This feature is very important. = TRUE //line 1
if freezeTab.unfreeze=TRUE
goto line 5