I looked for how we can custom ProjeQtor in the online demo, then in the forum. I didn't find answers so I post this... post.

Customization and parameters are not available on the demo : it would become unusable in few hours 😉

My company do not have budget for my team, so I want to custom ProjeQtor for free (so without plugins which are not free).

Unfortunately plugins that will ease this are not free.

By "custom", I mean :
- Change the name of the features/field in the menu (not in the custom menu !)
- Move these features/field
[Example] : I want to move the field "Ticket" in "Work" to "Follow-up"
- Hide some others features/field.
- Create or modify a column for one of the features
[Example] : In the features "Action", add a column "New"
[Example 2] : Modify a column to have a drop-down menu Yes/No.

To do all of this you'll have to change some code, and likely loose compatibility with community version.

Can I do that for free with ProjeQtor?

Yes,

How can I do this?

changing code.

Is it possible to try this in the online demo?

Absolutely NOT

More generally, what can I custom for free in ProjeQtor? How can I custom this?

All lists of values.
Some behavior on defined each"type" (mandatory description, mandatory result on done)
All what is defined in global parameters (not available on demo) and user parameters.

What can I not custom?

Reorganize screens. Change captions.

Thanks for the clear answer. 😉
That will help me !