From Tuesday, 4th of November 2014., the process of manual changing prices when creating or editing reservation will not be supported in “opened by default” form anymore. If you have had this enabled, the option is now completely replaced with the upgraded version Switch to ad-hoc mode.

You could have noticed this change in our News on Lemax Dashbord. After we have introduced it, we did some upgrades of this option and it has become more reliable tool for changing prices manually while creating a reservation.
You can track it under the titles Create reservation item with ad-hoc mode and Improved functionality of ad-hoc mode.