Formula in gantt project

I have some doubts about gantt Project.
Can I use formula when I create columm?
Is there some option to put hour in duration?
Can I use condition AND, OR, IF?
How many possibilities of graphic cn i use?

No, sorry.

No, sorry.

Can you clarify what do you mean?

I have in MS Project other options to graphic, for example bar graphic.
I saw in Gantt Project one option. Are there more options?

Ah I see. No, there is just one type of chart in GanttProject, sorry.