The row of tabs in the AceText Editor enables you to switch between different AceText collections. When you open a collection, or create a new one, a new tab appears for that collection. You can rearrange the tabs by dragging them with the mouse. If you open many collections then the tabs may no longer fit on one row. You can scroll the tabs with the double chevron buttons at the right hand edge of the row of tabs. The menu button next to them lets you select the tab you want to activate. On Windows 10 you can also scroll them with the mouse wheel. You can scroll the tabs with the left and right arrow buttons.
You can quickly switch tabs with the keyboard. Press Ctrl+Tab or Shift+Ctrl+Tab to cycle through the tabs. In the Tabs Preferences you can choose whether Ctrl+Tab cycles from left to right or in most recently used order. You can directly access a tab by pressing Alt+1 to activate the leftmost tab, Alt+2 to activate the second tab, Alt+3 for the third, etc. Alt+0 activates the tenth tab.
There are four standard tabs, that fulfill special functions in AceText:
All the other tabs are AceText Collection tabs.
You can configure the looks and behavior of the tabs in the Tabs Preferences.