You discribe:
Sequential Patching –
For quick sequential patching (also known as ‘block’, ‘one-to-one’ or ‘diagonal patching’)
• Touch and hold the first available patching block you wish to patch to until the touchscreen rotary illuminates.
• Turn the touchscreen rotary increase or decrease the number of channels you wish to patch; these are displayed as blue patching blocks.
But if i want to edit the diagonal row, i can only increase and not decrease!