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Field Layout allows you the set the layout of the field on the form
Types of layout
Stacked: It aligns the fields in a stack
Horizontal: It aligns the fields horizontally
Single Column: It aligns the fields in a single column
No Label: No label will display for the fields
Compact:
No Action Bar
No Action Bar hides the Action Bar for the form
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Action is a set of operations that can be performed by clicking the action button e.g Cancel, Submit
Action invokes workflow which actually performs an operation
You can add as many actions as you want
Refer Action
Primary Action
You can select an action to be the primary action of the form, from the list of actions
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