Yes, but can you provide example with usage of parameter ?

I need some "fixed" or "recommended" way of using parameters to implement it in VTDbManager (I know, that it cannot be 100% general, but if developer uses recomended way, he can use VTDbManager for setting param)
Now, VTDBMan shows all flags in plugin and if one of them is fsParam (or something like this), it displays editbox and user can set parameter of plugin usage. Parameter is then passed as PChar(editbox.text).