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@@ -141,3 +141,10 @@ B1-B3 pastes over it. Everything done while B1 stays down is one undo
step, as acme marks the file once per B1 hold (text.c:881, textselect), so
B1-B2 then B1-B3 is a copy: the text cut and pasted back, the cut text
left in the register.
+
+A B1 sweep held past a pane's top (on its tag) or bottom (past it, or on
+its last row when the pane reaches the screen's bottom, which the pointer
+cannot leave) scrolls the body a line a tick, as acme's frselect scrolls,
+the sweep's end under the pointer and its start on its text. A sweep that
+scrolled ends as the text's own selection, from where it began to where it
+ended. B2 and B3 sweeps do not scroll.