Item 

Description 

Display grid 

Displays a grid of dots on the Designer to aid in aligning controls.  

Use designer guidelines 

Enables guidelines on the Forms Designer. Guidelines facilitate the alignment of components on a form.  

Snap to grid 

Automatically aligns controls on the Designer to the nearest grid line as you move the control.  

Grid size/Snap tolerance 

Sets grid spacing in pixels along the x- and y-axis. Specify a higher number increase grid spacing.  

Show Component Captions 

Displays captions for nonvisual components you drop on a form or data module.  

Show Designer hints 

Displays a class name in a tooltip for a nonvisual component on a form or data module.  

Show extended control hints 

Displays a tooltip for controls that include the origin (position on the form), size (width and height), tab stop (whether the user can tab to a control), and order that you added the control to the form. Disabled if Show Designer hints is turned off.  

Embedded Designer 

Displays VCL Forms on the Design tab next to the Code tab. If unchecked, VCL Forms are displayed as undocked, floating windows, which is useful for viewing both the form and code at the same time. If unchecked, you must use either the Classic Undocked Layout or the Default Layout with the Dock Edit Window option unchecked.  

Show virtual screen position 

Displays the virtual screen position view in the lower-right corner of the Form Designer. Use this view to quickly set the on-screen runtime position of the form.  

New forms as text 

Toggles the format in which form files are saved. The form files in your project can be saved in binary or text format. Text files can be modified more easily by other tools and managed by a version control system. Binary files are backward compatible with earlier versions of the product. (You can override this setting on individual forms by right-clicking and checking or unchecking the Text DFM or Text XFM command.)  

Auto create forms & data modules 

Toggles whether or not to automatically create forms. When unchecked, forms added to the project after the first one are put into the Available Forms list rather than the Auto Create list.
You can change where each form is listed by chooing ProjectOptionsForms.