Sorry about the fonts, I can't seem to set them differently.
But my reading is that what you've said is true for Parts 4 to 6 and not necessarily true for Part 1 and 2.
So my problem is that I should enter fees including GST/HST
on Line A and then enter the amount of GST/HST on line (i) but
there is no way to enter a value for line (i)
From the guide for that form: Line A - Sales, commissions, or fees
Your sales include all sales, whether you receive or will receive money, something the same as money (such as credit units that have a notional monetary value), or something from bartering. Bartering occurs when two people agree to exchange goods or services without using money. For more information on bartering, see Interpretation Bulletin IT-490, Barter Transactions.
On line A enter the gross sales, commissions, or fees (including GST/HST collected or collectible).
On line (i) enter any PST, GST/HST, returns, allowances, discounts included in sales, and GST/HST adjustments. Line B is the total of line A minus line (i).
If you elected to use the quick method of accountingoption to calculate your GST/HST remittance, calculate goverment assitance as follows:
On line (ii) enter GST/HST collected or collectible on sales, commissions and fees eligible for the Quick Method;
For each applicable remittance rate, include (sales, commissions and fees eligible for the Quick Methodplus GST/HST collected or collectible) multipliedby the Quick Method remittance rate (place this amount on line (iii)). This is the amount you entered on line 103 of your GST/HST return;
The subtotal at line (iv) is line (ii) minus line (iii).
For more information on the Quick Method and examples of how it works, see Guide RC4058, Quick Method of Accounting for GST/HST.
If you are a self-employed commission salesperson, enter the commissions you received on this line.