Envelope nodes pushing each other around

I am using envelopes for the first time, to even out a live bass track.
 
I am having the following difficulties:
 
1. If I just want to lower a section, must I really make FOUR nodes, two on each end of a section?
 
2. How can I move a node horizontally and be absolutely sure I'm not moving another node further down the line?
 
3. How can I move a node vertically without accidentally moving it horizontally? (ctrl seems to be the the other way around)
 
4. How can I move a vertical bar, again without moving another node somewhere else?
 
5. How can I bounce down the final result to clip?
 
The manual is minimally helpful. It tells you more what it can do, rather than the details of how to do it.

+1 to CJ's comments

If the time line has a darker section on it where a section has been selected the nodes can move together as you have discovered...... so to get rid of that I simply click in another track....one click and that clears the selected area (dark grey on timeline and in track vanishes) and now I can edit nodes as I want.....individually.  

When editing nodes, I always like to zoom in so I can get "surgical" edits that are precise.  How far you need to zoom depends on the edit. It's possible to edit out a one cycle click by zooming and in my experience, that click will simply disappear sonically. 

JazzSinger


I am using envelopes for the first time, to even out a live bass track.
 
I am having the following difficulties:
 
1. If I just want to lower a section, must I really make FOUR nodes, two on each end of a section?

No. Swipe select & then click drag in the top 25% of the track as shown here

 
2. How can I move a node horizontally and be absolutely sure I'm not moving another node further down the line?

Click on the clip before clicking on the node you do want to move.

 
3. How can I move a node vertically without accidentally moving it horizontally? (ctrl seems to be the the other way around)

Hold down shift while moving. That will constrain the movement either vertically or horizontally depending on which movement you make first

 
4. How can I move a vertical bar, again without moving another node somewhere else?
 

Not sure what you meant there

5. How can I bounce down the final result to clip?

Select Tracks--->Bounce to track from the TV menu and ensure that "Track Automation" is selected in the pre-bounce dialogue box.

HTH