Find the client record as usual then click the “Policies”
button. Highlight the policy where the renewal is to be taken-up, then…

Edit the
details on the “Take-up Renewal” dialogue, as required, then click the “OK”
button.
This will take you to the final screen of the renewal
version, from which you can click the black “Curve Right Arrow” button to post
it to the accounts (see Policies,
Posting to Accounts).
You shouldn’t have needed to change any of the details, but
if you did, you could always have clicked the black “Curve Left Arrow” button.