Use the Clone Sales channel mapping and Prices checkbox in bulk clone
Tick the header checkbox to select every SKU's sales channel mapping and prices at once, and read its indeterminate state when only some rows are ticked.
In the bulk-clone table, the "Clone Sales channel mapping and Prices" checkbox in the column header acts as a select-all: ticking it ticks the per-SKU checkboxes.
The "Clone Sales channel mapping and Prices" checkbox in the column header shows an indeterminate state when only some rows are ticked.