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The App Designer in detail > Editing User interface files

Toolbox: Spacers

Toolbox Spacers

Spacers are invisible objects whose purpose is to add blank space inside a layout. The Spacers toolbox contains the following objects:

Horizontal Spacer: drag and drop this item onto your form to create a horizontal division between zones.
Vertical Spacer: drag and drop this item onto your form to create a vertical division between zones.

Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.App_Designer/Toolbox_Spacers · retrieved 2026-07-17