Remove some buttons

Hello,

In the first place, I would like to thank you for your great work.

Now i want to customize the interface for my users :)

I want to know if it's possible to remove some buttons and if yes how to do it ? (I would like to remove buttons surrounded with red on this screenshot)

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Thanks in advance.

Clément.

P.S: Sorry for my poor English :oops:

Edit 2021:
See https://winscp.net/eng/docs/ui_toolbars#customizing

https://winscp.net/tracker/582