Your first port of call should be the
Online Tutorial found in the Help dropdown. Working through those will give you a good grounding in the basics of SW.
But to answer your question;
1) You can use
Insert > Model Items and select the options you need from there.
2) Under
Tools > Options > System Options > Drawings select
Automatically place dimensions inserted from model and under {b[Tools > Options > Document Properties > Detailing[/b], in the
Auto insert on view creation section, select
Dimensions marked for drawing. This will automatically insert & place dimensions on the views as they are created on the drawing sheet.
3) Select the
Smart Dimension icon under the
Dimensions/Relations toolbar, then in the drawing, select the model element or vertices you want to dimension.
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