There’s a “team sweet spot” you can join. That has a good library of workouts which progress TTE
They were referring to this TR team with custom sweet spot workouts
I can’t access that any more as I’m not a subscriber.
I’ve since worked out the (actually remarkably easy!) Intervals workout builder though, so can knock up a session in a couple of minutes now 
Did you ever figure this out? I now have the same problem!
May not be the answer you’re looking for, or maybe I misunderstood the question, but intervals.icu has that already… that’s where @FergusYL got the table they copied here.
Were you replying to me? If so, thanks for the reply, but my question was about tracking time in SS zone during the ride on the Garmin, not after.
Yes, replying to you; and sorry, had misunderstood the question.
Nope. Weirdly, it’s just not something any of the computers seem to do. The best workaround I could find was to hit the lap button on stretches where I knew I could stay in sweet spot, then end it when the terrain hit a point I couldn’t hold the power steady anymore, like long downhills or lots of rollers. Then just keep a running total of time in zone in mind.
It’s pretty annoying considering how common SST training is across training apps, platforms, and philosophies.
https://apps.garmin.com/en-US/apps/95fc3b69-6c3c-4618-a2de-f68ffca35360
This certainly isn’t perfect but you can set a custom floor that you have to exceed (just can’t give a ceiling).
Thread here: Announcing "Endurance in Zone" for Garmin devices
@torhovland is the creator
I have not tried this but could you use Garmin’s native Time In Zone and customize your power zones?
Default:
Sweetspot specific:
Yeah, I’ve considered that but I do occasionally use it to track time in zone for Threshold, too. And just knowing the zones were off would inevitably kick up some kind of Telltale Heart scenario on the bike and drive me a little crazy.
I was just checking around on the Connect IQ store and there’s a decent looking time in zone datafield. I may reach out to the developer and see if he could add Sweet Spot in there, with donations forthcoming.
Garmin has native TiZ data fields too, just not a SS one.
Anyone currently making use of the “More Sweetspot!” Team’s library of “SS90” workouts might want to take a look at this:
No reply from TR so far to my questions about this, heightening my concern that this extremely useful feature - which in effect provides us with shared libraries of Custom workouts - is one step nearer to being binned for good. 
If this is something that you make use of, and would be impacted by its loss, I suggest speaking up…
Seriously? I may have to turn off the new calendar in that case.
Edit: realized I can do it from the team page the way I always have, so not a huge issue for me (at least at this point). Didn’t even realize you could do it straight from the calendar.
That won’t work forever. If they’re planning on deprecating teams, then it’s only a matter of time before they move everyone to the new calendar and turn off the old calendar entirely.
The only real “solution” is to make them aware of how useful teams are and hope they adjust plans to keep that functionality somehow.
You can stil add them from the Workouts page. At least I’ve just been able to.
Yes, I mention that in my Calendar thread post… but unless something changes, or some assurances are made, the direction of travel appears pretty obvious: this feature is destined for the chop.
Seems totally crackers:
- Why wouldn’t you want a feature that enables users to share Custom Workouts?
- What’s the point of having everyone create their own individual workouts, duplicating effort, and wasting time?
Unless the direction of travel means that Custom Workouts themselves are also being lined up for the chop?
Can you imagine if TR developers weren’t allowed to use software libraries and instead had to create everything themselves from scratch? Maybe that’s why WLV2 is taking 3 years 
I created the sweet spot team workouts I use in intervals.icu and push them to indieVelo. TR isn’t necessary for these. And creating workouts in intervals.icu is so much easier than TR’s workout creator.
I don’t really wish to abandon TR, or add more complexity, but everything would ultimately be in play if changes by TR (feature removal!) meant that I became unable to do the workouts that I wished to…
I currently only use intervals.icu for post-ride analysis. Regarding its use as a repository for workouts, does it support shared libraries of workouts? I can see it has groups that might facilitate this but unsure…
Ultimate question, I suppose, is whether it’s possible to get all of these SS90 workouts over into a library on intervals.icu and then have them be publicly accessible, so that anyone can make use of them (not just members of a closed group of people who happen to already know each other).
Is that possible?
I know you can share a folder of workouts on intervals.icu publicly (but not proprietary workouts), but I don’t know if you can copy or import that folder into your own library. Is that possible @davidtinker? And to be clear these are not TrainerRoad-created workouts.