Have you tried the conditional orders? I was considering switching from tos for cheaper fees but haven't taken the time to test IKBR workstation. I find the layout quite messy... actually same with tos. There are so many features that are unnecessary imo and should just be stripped down.
You need a few more options; 3. Both… some features are specific to each UX. E.g., Bond Scanner in Classic, window layouts in Mosaic. 4. Classic API 5. REST API 6. Web-based stuff
I also use classic. However, I have been told that using mosaic you can have several accounts open at the same time. You can also do that using classic view, but it requires using older desktop fully downloaded versions for the additional accounts.
Mosaic is garbage as none of the functionality could even standalone as a viable front end. IOW ppl tolerate it due to market access internationally or for OPM on a budget. IBKR is garbage. Running PM? Be prepared for an auto-liq of your box when quotes are stale and your utilization is 3% (true story). Running RegT? Be prepared to pay $5 for a $4 risk on a cs.