Type /time-period-slicer-custom, point it at the chart (or charts) to filter, confirm two things, and the skill builds everything:

1. Reads your model — auto-detects the calendar, its date/year columns, the fact tables, the measure table, and the visuals on the page

2. Asks two things — which rolling periods to include (all 8 by default; a Custom option is always added) and the axis granularity (monthly, quarterly, weekly, or daily)

3. Builds the tables — a period selector, a bridge, a disconnected date-range table for the picker, and a disconnected axis table the year slicer can't restrict

4. Wires the relationships — bridge-to-period and a single-direction bridge-to-calendar (no bidirectional, which is what stops the year slicer collapsing the calendar)

5. Writes the measures — the period filter, the rolling-window wrappers per measure, a "disable" helper for greying out the date slicer, and a dynamic title that names the active window

6. Adds the two slicers — a period tile slicer and a date-range picker, styled to match your page

7. Wires each target chart — axis swapped to the disconnected table, wrapper measures on the values, the period filter applied, and the dynamic title bound

8. Keeps interactions clean — the slicers only affect the charts you targeted

9. Keeps working under bookmarks — the period filter is re-asserted on any target chart captured in a bookmark, so navigation doesn't drop it