Actually there is a way to do what you wish without having more than ONE view on your drawing (and no second sheets either).
You can use the 'Break-Out Section' view function. This allows you to edit an existing view by adding a 'break-out' section to a portion of the view allowing interior details to be seen like in a normal section view. The trick is to create and select a polygon as your break-out boundary which encloses the entire view. In that way the entire view is 'sectioned'. Now you may have to temporarily add an additional view so as to allow you to select the location point where you wish the section plane to lie in your model, but once the section view is created you can delete this other view as it no longer plays any role whatsoever.
To help you better understand how this works I've attached a simple example that you can perform this workflow on.
Open the Drawing file and note that there are two views in the drawing. The one that we are going to edit is the one on the left. The other view is just there to help up select the correct section plane. Also note that I've already created a Sketch in the view of interest representing our 'break-out' boundary.
Now go to...
Insert -> View -> Break-Out Section...
...and with the 'Create' option toggled ON and the 'Cut Through Model' option toggled OFF, first select the view of interest (the view on the left). Now select the center of the hole in the other view (on the right) to determine the plane of the section. As soon as you select the point a vector will be drawn indicating the direction of the section plane. It should be OK as is and therefore you can skip the next step (just push MB2) and you will now be asked to select the 'break line'. So just select the curves, in order, around the rectangle. As soon as you select the last curve the 'Apply' button will become active. Select it and the section view will be created. Now hit 'Cancel' and then select and delete the other view (the one on the right) and you should be good to go.
Anyway, give it try and let me know how it worked for you and whether this will give you what you're looking for.
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
To an Engineer, the glass is twice as big as it needs to be.