SolidWorks and Solid Edge are different when it comes to 2d drawings. Solid Edge will use the 3D model to generate a standalone 2d view of the model vs SolidWorks who will directly presents the 3d model as a 2d view. The difference may be subtle but for certain functionnality it makes a huge difference. For example SW needs to loads the 3D model in order to show the 2d view on the drawing if he doesn't have access to the .sldprt or .sldasm then nothing will show on the drawing. In SE the drawing is referenced to the 3d model but can still be viewed even if you don't have the 3d model available because the lines were generated at the time of the creation of the view.
Having said that, you won't find many 2d tools in the drawing package of solidworks because it's made that way. For my part I really miss this functionnality from my old days with SE.
So if you don't require to keep the associativity between the 3d model and the drawing views then as others suggested your best option is to export as .dwg and use Draftsight or other 2d software to do the editing.
I want to quickly alter assmebly drawing to show better designs. I can always print & sketch over it but it won't be to scale & sometime confuse people in meeting. (crossing out line etc..)
It takes lot of time to change all parts in 3D to show various design enhancement options for existing assembly.
Hope this explains its use, if we have this in SW.
Have you considered saving the drawing as a Detached Drawing? This stores the 2D information and doesn't require the 3D model unless you wish to update (reattach) the drawing. To detach the drawing, goto File>Save As...> and select file type "Detached Drawing".
Also, you can log onto the SolidWorks Customer Portal website and goto the Enhancment Request area to find open requests for similar functionality for individual views. The more people that vote for those requests, the most important they become.