Add optional loop schedule input

README.md

@@ -191,10 +191,10 @@ Basic loop wiring:
 5. After the loop finishes, use `For Loop End.collected` as the combined output.
 
 `For Loop Start.index` is 1-based so it can be wired directly into prompt-builder
-`row_number` inputs. `For Loop Start.skip` skips the first N iterations while
-keeping the remaining row numbers stable. For example, `total=10` and `skip=1`
-runs indexes `2..10`; `skip=5` runs indexes `6..10`. This is useful when you
-want to resume a loop without changing index-derived seeds or row numbers.
+`row_number` inputs. `For Loop Start.schedule` is an optional input for choosing
+which indexes run while keeping row numbers stable. Omit it to run `1..total`,
+connect a list such as `[2, 5, 8]`, or connect text such as `2,5,8` or `2-8`.
+Indexes outside `1..total` are ignored.
 
 `collection_mode` controls how values are stored: