In the Custom sorting window, when creating or editing a multi-level sorting, you can:
–Add levels.
–Duplicate levels.
–Move levels.
–Delete levels.

Each level in the window corresponds to a separate line. The line with the selected level is highlighted in color.
To add a new level, click
Add sorting level button on the top panel of the window. A line with a new level with default settings will be added to the list of levels.
To duplicate a level, follow these steps:
1.Select the level to be duplicated by left-clicking the line with it.
2.Click
Duplicate sorting level on the top panel of the window. A line with a new level with the parameters of the copied level will be added to the list of levels.
You can move a level, thereby changing the sort order, in several ways:
–Drag and drop with the mouse.
–Click the buttons on the top panel of the window.
–Use keyboard shortcuts.
To move a level by dragging with the mouse, do the following:
1.Move the mouse cursor over the line number. The cursor will look like
.
2.Click and hold the left mouse button and drag the line to the desired place in the list.
To move the level using the top panel buttons, do the following:
1.Select the level to be moved by left-clicking the line with it.
2.Click
Move level up /
Move level down on the top panel of the window to move the level one position up or down respectively.
To move the level using the keyboard shortcuts, do the following:
1.Select the level to be moved by left-clicking the line with it.
2.To move a level one position up or down, press Shift+Ctrl+↑/↓ (Windows, Linux) or Shift+⌘Cmd+↑/↓ (macOS). To move a level to the beginning or end of the level list, press Alt+↑/↓ (Windows), ⌥Option+↑/↓ (macOS).
To delete a level, do the following:
1.Select the level to be deleted by left-clicking the line with it.
2.Click
Delete sorting level on the top panel of the window.