Selective Loading Through USER Dialog Box

[AinhoaReyes]

Hello all,

I am working on building a custom/user Dialog Box to be able to selectively load channels from files interactively. I have a lot of folders and subfolders and I would like to be able to navigate through them without actually using the file explorer (as people accessing the files have messed with them before by mistake). Then, navigating through the explorer where I have stored tdm files in some of the folders should be dealt with by a combolist or combobox or something like that.

I already have a script of what I want to do but it opens the file selection in the explorer. Nevertheless I attached it here so you could understand what I am trying to accomplish, but with a dialog box through lists or so.

Is something like this possible with a dialog box? I can provide more details, but before I would like to know if it is possible, as I have not found anything in the documentation or the examples related of how to fill in dialog box elements with folder paths... 

Thank you.

[AinhoaReyes]

I attached an image on what we want to build. The first two elemtents are actually names of folders. The third is a tdm file and the last row are the channels that we should be able to select. The channels are stored as numeric channels, so actually it is needed to load always the channel time in one of the rows and this one should be fixed without the possibility to select another. There should be another row to select multiple of the other channels. We want to load selectively the channels into DIAdem in this way. If I need to give more details about it please let me know. 

Thank you.