Final answer:
To access the Preset Manager, click 'Edit' on the menu bar, then select 'Presets' followed by 'Preset Manager'.
Step-by-step explanation:
To display the Preset Manager in a software application, which seems to be related to graphic design or digital imaging, you typically access it through a menu bar. Given the options provided, the correct sequence to open the Preset Manager is by clicking Edit from the menu bar, then pointing to Presets, and finally selecting Preset Manager. The Presets menu usually allows for choosing common configurations for working with various elements within the software, like how to represent a protein in this context.