how do i go about entering a restriction L on the register of my property?

[flipnflap]

how do i go about entering a restriction L on the register of my property?

[buildersmate]

Restrictions (as far as I know) are not identified by a type or list that corresponds to a letter of the alphabet. So I don't have the faintest idea what you mean by a 'restriction L'.
What exactly are you trying to register on your land title?

[factor-fiction]

Welcome back, buildersmate.
I wonder if this was a typo in the title and flipnflap simply pasted her typo into the question box

[factor-fiction]

http://www.landregist...des/practice-guide-34
Do you mean using standard form L?

[factor-fiction]

http://freeconveyanci...ices-conveyancing.php

"Certificate of Compliance required - Form L
No disposition [or specify details] of the registered estate [(other than a charge)] by the proprietor of the registered estate [,or by the proprietor of any registered charge,] is to be registered without a certificate [signed by [name] of [address] [or [his conveyancer] or specify appropriate details]] or [signed on behalf of [name] of [address] by [its secretary or conveyancer or specify appropriate details]] or [signed by a conveyancer] or [signed by the applicant for registration [or his conveyancer]] that the provisions of [specify clause, paragraph or other particulars] of [specify details] have been complied with."

"This restriction requires that a certificate be given by either the beneficiary of the restriction or by the purchaser's conveyancer that some transfer or lease clause has been complied with. Typically this will appear on leasehold titles or on freehold titles which are subject to an estate charge, and the obligation contained in the clause referred to will be to ensure that the purchaser enters into a deed of covenant with the management company to pay the charge. This is because positive covenants (for example a covenant to pay money) are only enforceable between the original covenanting parties. The option for the purchaser's conveyancer to give the certificate is sometimes omitted. Prior to exchanging contracts the purchaser's conveyancer should enquire (through the seller's conveyancer) as to the restrictioner's requirements for issuing the certificate of compliance as registration cannot be completed without it. Exchange should not take place unless the purchaser's conveyancer either has everything that will be required to obtain the certificate, or else he is absolutely satisfied that he will have this at completion. It should be noted that there is often a fee charged for issuing the certificate and this should be ascertained pre-exchange."