Hi Mohammadian,
The tabular list is great for importing networks. But also need to import table data to serve as attributes for your nodes and interactions. A file like this for example:
Symbol Type
HNF4A TF
NFIC TF
FABP1 Gene
ANPEP Gene
… …
After creating your network (like you described below), then import this file as a table, matching the “Symbol” column with the “name” column of the network. This will add “Type” attributes to each of your nodes. You can then use the Style panel to map that “Type” information to any visual property you like, e.g., Node Shape (discrete mapping).
Give it a try and let us know if you get stuck.