Pages opening as New Tab

The question is: why do you want to disable the tabs? Erik is correct. The tabs do not take up extra resources (memory or CPU or network usage). Only the the page you are viewing is 'open' and active. The tabs are just a list of recent pages. The tabs just make it easier for operators to return to recent pages so they can switch between the pages they use most often with a single click instead of having to go through the navigation menus. By disabling the tabs, you are only decreasing the usability of the SCADA system and not providing any benefit that I know of, unless there is an unusual security requirement that people can't see what page names have been viewed recently. If the tabs don't work correctly because there is code that needs to be called before the pages can be re-opened, then you just need to use PageTask() to open the page (see the PageTask() help for details).

The question is: why do you want to disable the tabs? Erik is correct. The tabs do not take up extra resources (memory or CPU or network usage). Only the the page you are viewing is 'open' and active. The tabs are just a list of recent pages. The tabs just make it easier for operators to return to recent pages so they can switch between the pages they use most often with a single click instead of having to go through the navigation menus. By disabling the tabs, you are only decreasing the usability of the SCADA system and not providing any benefit that I know of, unless there is an unusual security requirement that people can't see what page names have been viewed recently. If the tabs don't work correctly because there is code that needs to be called before the pages can be re-opened, then you just need to use PageTask() to open the page (see the PageTask() help for details).