FPM inplace - calling transaction

Dear experts,

we try to navigate from a FPM application to an ITS based standard transaction via web gui.

The FPM application is running in inplace mode.

We use the following:

Interface:           iffpm_navigation_to

Parameters:      fpm_s_Launch_Transaction

                         apb_lpd_s_add_trans_Parameters

Parameter values:

gui_type = 'WEB_GUI'

tcode = <Standard TA>

Navigation_mode = 'EXT_HEAD'.

When we run the application in the browser the transaction is displayed in a new tab.

In the inplace mode no window is shown.

Is there a possiblity to show the window also in inplace mode?

Thanks for your help!

Regards

Wolfgang