My wish list after using Notion for about a month

So, after doing a fair bit of experimentation, here's my current wishlist. I work with a wide of variety of styles, from small classical ensemble music to modern rock. I've entered a fair bit of stuff off IMSLP and this has also given man an appreciation for good musical typography. Most of the scans are of editions, mainly from the late 19th century.
I have a feeling that some of this may well be possible, and it's just not clear from the doc how to do it.
PS: I don't want this to sound like a gripe-fest. Overall I'm pretty happy with Notion, especially at the price point.
General
1. User editable multi-measure rests. It's often nice to be able to break long rests into sub-rests, to indicate phrasing and structure.
2. Courtesy accidentals. Most classical parts always use courtesy accidentals. Notion never does.
3. Automatic cues - select a one or more rests, have a drop-down "Insert cue" that would then prompt for a track. This would import the notes from that track as cue notes and place the instrument name as text.
4. Repeat variations. Basically a way to "double" enter a passage, and specify which repeat that applies to. Basically this is to allow repeats with minor variations. This makes it easier to capture musical intent since, say, rather than totally copy a section of 8 measures, and duplicating it, you can notate the actual difference (say, additional percussion in the 2nd repeat or something). If anyone has the Beatles' "Complete Scores" this is used in just about every song, allowing many to fit in just a handful of pages, while still capturing all the nuance.
4b. More flexible numbered endings. For most of the same reasons as my last point.
5. More flexible layout options. Most computer notation programs seem to like to use lots of horizontal space, even in relatively simple passages. It would be nice to be able to tighten those up.
Guitar/Bass Specific
1. Implement slides to/from nothing. The actual note slid to should probably be +/- 3 frets or so. Very common in rock at the end of a phrase, where the intent is more of a sound effect than the desire to play a specific pitch.
2. Slides from grace notes
3. Attach bends to individual sub-notes of a tied note. Now they always attach to the first note, even if the intent is to have say a half note that doesn't get bent at all until the last 8th.
4. Rythmn slashes should alter the notes in tab also.
5. Show/hide tab at measure boundaries. So the verse can be rythmn slashes notated on the normal staff only, but the solo is tabbed, etc. More of a space saver.
6. Would it be possible to have some sort of text markup that could tie into effect module parameters. I'm thinking in particular of being able to control automation in Amplitube so that effects can be toggled on an off, pedals rocked, etc.
I have a feeling that some of this may well be possible, and it's just not clear from the doc how to do it.
PS: I don't want this to sound like a gripe-fest. Overall I'm pretty happy with Notion, especially at the price point.
General
1. User editable multi-measure rests. It's often nice to be able to break long rests into sub-rests, to indicate phrasing and structure.
2. Courtesy accidentals. Most classical parts always use courtesy accidentals. Notion never does.
3. Automatic cues - select a one or more rests, have a drop-down "Insert cue" that would then prompt for a track. This would import the notes from that track as cue notes and place the instrument name as text.
4. Repeat variations. Basically a way to "double" enter a passage, and specify which repeat that applies to. Basically this is to allow repeats with minor variations. This makes it easier to capture musical intent since, say, rather than totally copy a section of 8 measures, and duplicating it, you can notate the actual difference (say, additional percussion in the 2nd repeat or something). If anyone has the Beatles' "Complete Scores" this is used in just about every song, allowing many to fit in just a handful of pages, while still capturing all the nuance.
4b. More flexible numbered endings. For most of the same reasons as my last point.
5. More flexible layout options. Most computer notation programs seem to like to use lots of horizontal space, even in relatively simple passages. It would be nice to be able to tighten those up.
Guitar/Bass Specific
1. Implement slides to/from nothing. The actual note slid to should probably be +/- 3 frets or so. Very common in rock at the end of a phrase, where the intent is more of a sound effect than the desire to play a specific pitch.
2. Slides from grace notes
3. Attach bends to individual sub-notes of a tied note. Now they always attach to the first note, even if the intent is to have say a half note that doesn't get bent at all until the last 8th.
4. Rythmn slashes should alter the notes in tab also.
5. Show/hide tab at measure boundaries. So the verse can be rythmn slashes notated on the normal staff only, but the solo is tabbed, etc. More of a space saver.
6. Would it be possible to have some sort of text markup that could tie into effect module parameters. I'm thinking in particular of being able to control automation in Amplitube so that effects can be toggled on an off, pedals rocked, etc.