Configure Merging of Features

I have a requirement to show a rough machine, weld overlay drawing and finish machine drawing for a turned component. There are several ways of doing this but the one I am looking at at the moment is as follows:-

Feature 1 - Rough machine - Revolve

Feature 2 - Weld - Revolve

Feature 3 - finish machine - Cut Revolve

By turning off features 2 & 3 I have the model I use in the rough machine drg, by turning off feature 3 I have the model for the weld drg and with all features on I have the Finish machine drg.

However, for the weld drg I hatch feature 2 differently to show where the weld is, for the finish machine drawing I am unable to hide all the lines between the 2 bodies so wanted to have a way of turning off and on the merge bodies function depending on the configuration.

The attached shows the finished machine drg. When I try and hide the offending lines I need to do it twice, once I assume for each body. If I click the horizontal lines in different places I can sometimes get the hide line question to appear but for the vertical lines this question never appears twice.

Ideally I would merge the features for finish machine and unmerge for Weld configuration. Is this an option?

Thanks

DaveP

SolidworksParts And Features