Page Designer’s layout modes under Utilities adjust the workspace:
A . Two Pane: Splits into two vertical sections (e.g., tree and properties), ideal for focused editing.
B . Three Pane: Adds a third section (e.g., tree, grid, properties), offering a balanced view for complex
pages.
C . Four Pane: Not available; APEX limits to three for usability.
D . Single Pane: Not an option; the minimum is two panes.
Developers toggle these via the Utilities menu to optimize screen real estate based on task
complexity.
Reference: Oracle APEX 23.2 Documentation - "Page Designer Layout" under Utilities.
