Vertical editing headaches

After some recent successes posting questions about Take Lanes here, I thought I'd try another one, which is another frustrating time-waste for me, and that is "vertical editing". I'm sure there is an official term for this, but what I refer to simply "This 2-bar break needs to be 6 bars" which requires me to insert 4 new bars in the middle of my project and sliding everything over that comes after.
 
With the abysmal vertical scrolling implementation in X3, and that sheer number of tracks in my projects, it's very cumbersome to lasso clips and slide that way, but selecting all tracks and then changing the starting point of the selection is tricky because pickups and downbeats that I anticipated by a fraction of a second will be missed. What I end up doing is a combination, where I select all tracks from a certain point to the end, and then track by track do a Ctrl-right click on any clips with a pickup or rushed downbeat. Made more difficult by the fact that some tracks have multiple clips in them, so I might have to open the take lanes and look clip by clip. Invariably, I miss one or three, and have to recreate pickups or rushed notes and delete them from the part that didn't slide. Anyway, it's a huge PITA, just to satisfy a simple thing like inserting extra bars.
 
The above is for dragging clips, which is bad if I have markers or tempo changes or time sig changes, unless I go in and make sure those get moved when I drag. 
 
The other method of course is to use Insert Time/Measures, which is a "dumb" function in that it has no concept of pickups or beat anticipation at all, it just dumbly inserts measures in the project, splitting clips willy-nilly and essentially making something of a mess of my project.
 
(Side note: but I still scratch my head in annoyed wonderment that Inserting measures in a project is not found in THE FRICKIN;' INSERT MENU!!!) And when I open the Insert Time/Measures dialog, I have to manually select that I want everything to slide along with the clips. Why isn't that the default? It's as if Cakewalk wanted to make this entire simple thing take as many steps and mouse clicks as possible.
 
It just seems like such a simple thing. Is there a simple way to do this that I'm missing?

Hmm, does that mean I can regain the lost pickups by slip editing the left edge of the clips that have slid over too? That might be helpful. I can try splitting the clips at the Now time and then insert, like you listed, but in that case is there any point to first splitting them? Once I insert time/measures, doesn't that split them too? I think it's just a matter of finding the correct Now time and not messing with clips at all. And if I can slip edit the few notes I may have missed on either end of the insert, maybe this wouldn't be so bad.

It's also worth remembering that using Insert Time/Measures is the only way to ensure that any markers, tempo changes, meter/key changes and envelopes nodes also "slide over" when you create blank space.

jkoseattle - first, are you actually in Seattle? Just wondering.

But to the point, I use another approach because I typically have 100+ tracks in a song and I frequently move stuff around. I use Control A, which selects all tracks, then under the Edit menu there is Select by Time. I pick any range I want down to the tick, then I can copy, or cut that section. If I use Control Alt C ( copy special) I can copy markers or whatever in addition to the track events.

Control alt V (paste special) enables me to paste at exactly the spot I want, and I can choose whether I want to include markers etc. Super easy and surgically precise every time. No guesswork.