Appearance
Settings on a Phone
On a phone, Settings is a list first and a page second. The desktop's side-by-side section list, Quick edit card and docked preview are replaced by screens that fit a thumb.
The overview
Opening Settings shows the list of the same 12 sections in their five groups (see Settings). Each row shows a one-line summary of its current value, or "n changed" when you have edits waiting, and an Unsaved mark on sections with draft changes. Symbol mappings shows Needs attention when a symbol needs a fix.
When the account is halted, a warning strip above the list reads, for example, "Halted until 23:00", and Daily limits › takes you to that section.
The Account defaults and Presets tabs, the account slider and a search button are on the overview too. The search button opens a sheet titled Search settings that finds every setting, old names too.
Editing in place
Sections whose top setting is a single value can be expanded right in the overview: tap the row and the setting appears under it. All {Section} settings › below it opens the full section screen. Collapsing a row never discards what you typed.
Section screens
Tapping a row opens that section on its own screen. The back arrow, labelled Back to all settings, returns to the list. A chip rail at the top, Jump to a section, moves between sections, and the chip of the section in view is marked. Rows are the same as on a desktop, and the ? help on a row opens as a sheet. Tapping a row's label opens its help rather than focusing the control.
Saving and the preview
The save bar is fixed to the bottom of the screen in two rows: the count of unsaved settings, which opens the list of changes with an undo on each line, then Preview, Discard and Save. On a very short screen, for example with large text, it shrinks to one row: the count and Save, with Preview and Discard inside the list. The bar hides while the keyboard is open for typing.
Preview opens the trade preview as a sheet. While you have unsaved edits it is titled Unsaved changes; when the draft is clean it is titled Trade preview. The sheet uses the draft, so it shows the effect of what you changed. Read Explanations and the preview for Preview as and the sample signal, and Saving and history for Changed somewhere else.
On a preset's page the same overview, section screens and save bar apply. See Presets.

