[Typo3-dev] configuration of BE module through felxforms - possible?

[Rainer (Rene) Suthoelder]

hi!
currently, i try to port an ordinary PHP import script to be a true typo3 BE 
module.

for the BE module, i need to have user-specific settings for each BE user 
which runs the module as well as for different import sessions.
the user has to enter several configuration options: file name, mapping 
options, default values and such.
my idea was to present him a flexform where he can enter these config data 
and let him save this info as a preset. once the configuration is done, the 
import may start. the next time, he could choose from his presets or add a 
new configuration.

my question:
how do i implement FF in BE modules? reading the docs, so far i only found 
how to implement FF in FE plugins...
i already have a working DS which renders the wanted flexform in a sample FE 
plugin (following instructions from 
http://wiki.typo3.org/index.php/Extension_Development%2C_using_Flexforms).

or does someone know a simple BE module where FF have been implemented for 
configuration purposes? i tried to analyse kasper's SYSEXT:impexp (which has 
many of the features i'd like to have as well) but this extension is 
_pretty_ sophisticated.

any help appreciated,

rainer