Call park option for in-call soft key

[keffa]

Is it possible to add an additional option to the list of functions available for the soft keys when in a call? Specifically I want to add a "Park" option that allows the operator to park the call.

In the phones web administration page, going to:

Settings > Softkey layout

Gives you the option to customise the softkey layout. However if you select "On talk" it does not offer the option to change one of the buttons to "Park call" and I would like to add this. Is there another way to do it, I cannot seem to find a way via the configuration files either.

Many thanks for the help.