# Is autoscale limited to a maximum of traces? **URL:** \ **Category:** General\ **Tags:** feedback\ **Created:** [January 15, 2026, 6:51pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806 "2026-01-15T18:51:44Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![marcel\_hendrix](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/marcel_hendrix/32/14_2.png) [@marcel\_hendrix](https://forum.plexim.com/u/marcel_hendrix)\ **Post date:** [January 15, 2026, 6:51pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/1 "2026-01-15T18:51:44Z")
I tried to have a scope window with 9 traces. The GUI is not preventing that on my high-dpi monitor. For some reason, trace 3 is generated with auto scale off, and I can’t enable it. Deleting trace 3 and then again adding it does not solve the issue. Is this a known limitation? The problem is quite a hindrance, as for some reason it is also not possible to use the mouse to Y-scale trace #3. (I guess this is part of the same problem). ---
**Author:** ![wolfgang](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/wolfgang/32/7_2.png) [@wolfgang](https://forum.plexim.com/u/wolfgang)\ **Post date:** [January 19, 2026, 3:13pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/2 "2026-01-19T15:13:47Z")
Could you post a model that demonstrates the behavior? ---
**Author:** ![marcel\_hendrix](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/marcel_hendrix/32/14_2.png) [@marcel\_hendrix](https://forum.plexim.com/u/marcel_hendrix)\ **Post date:** [January 19, 2026, 4:07pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/3 "2026-01-19T16:07:25Z")
> Could you post a model that demonstrates the behavior? Of course, I forgot. This is for the standalone version, on a hires 3840x2160 monitor. With the blockset it is not an issue, but I had to reenter the schematic there. The problem is with plot 3 (I see now some plots have no label). The little icon in the top left is missing, and I can’t set the scale with mouse. -marcel [Buck\_ioinovici.plecs](https://forum.plexim.com/uploads/short-url/9ranExFAFFuM8gveHNZW6wDhloj.plecs) (27.5 KB) ---
**Author:** ![wolfgang](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/wolfgang/32/7_2.png) [@wolfgang](https://forum.plexim.com/u/wolfgang)\ **Post date:** [January 20, 2026, 12:44pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/4 "2026-01-20T12:44:26Z")
How do I use this model to reproduce the behavior you described? Your model contains a single **Scope** block with a single plot. When I run a simulation for the `switched` configuration of the subsystem, this plot shows two curves. I can zoom in horizontally, and the y-axis limits will be adjusted. (I cannot run the other configurations because of missing workspace variable definitions e.g. for `Aave`.) ---
**Author:** ![marcel\_hendrix](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/marcel_hendrix/32/14_2.png) [@marcel\_hendrix](https://forum.plexim.com/u/marcel_hendrix)\ **Post date:** [January 20, 2026, 2:54pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/5 "2026-01-20T14:54:03Z")
Wolfgang writes: - (I cannot run the other configurations because of missing workspace variable definitions e.g. for `Aave`.) Sorry for wasting your time - I uploaded the wrong file. I removed boost2.plecs and added Buck\_ioinovici.plecs. Below is what you should see after ^T. When I zoom in on the plot3 ‘C2: Capacitor voltage’ one sees that this plot has missing ylimits and the small square in the top lefthand is missing (the other traces have it). -marcel ![no_Yscale_demo](https://europe1.discourse-cdn.com/flex006/uploads/plecs/original/2X/4/4584be7036347ad4165a5643cbd9463e01b9b184.jpeg) ---
**Author:** ![wolfgang](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/wolfgang/32/7_2.png) [@wolfgang](https://forum.plexim.com/u/wolfgang)\ **Post date:** [January 20, 2026, 3:18pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/6 "2026-01-20T15:18:24Z")
> [@marcel\_hendrix](#): > > When I zoom in on the plot3 ‘C2: Capacitor voltage’ one sees that this plot has missing ylimits and the small square in the top lefthand is missing (the other traces have it). When you right-click on this particular plot, you see a context menu entry **✔ Spread signals**. It appears that you have enabled this option at some point. It is used to automatically spread multiple (typically logical) signals vertically, and hence vertical zooming is disabled. If you disable this option, the plot will go back to normal. ---
**Author:** ![marcel\_hendrix](https://dub1.discourse-cdn.com/flex006/user_avatar/forum.plexim.com/marcel_hendrix/32/14_2.png) [@marcel\_hendrix](https://forum.plexim.com/u/marcel_hendrix)\ **Post date:** [January 20, 2026, 6:13pm UTC](https://forum.plexim.com/t/is-autoscale-limited-to-a-maximum-of-traces/2806/7 "2026-01-20T18:13:21Z")
Hi Wolfgang, Clear. Thank you! I faintly remember trying ‘spread out’ in a situation where it did nothing, and then I obviously forgot to disable it. BTW, PLECS’ mouse zoom is the best I have ever used. -marcel