Hi Ilyas, I can't check it now but maybe deselecting here just hides the New-icon but not the functionality (still available as a data source in data modules): 
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Philipp Hornung
Business Intelligence Manager
Techniker Krankenkasse
Hamburg Germany
#IBMChampion
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Original Message:
Sent: Tue February 21, 2023 01:51 AM
From: Ilyas Yulyev
Subject: How remove/hide a Upload files button
Hi Philipp! The script is like this:the user creates a data module, adds a new source, and uploads a file.
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Ilyas Yulyev
Original Message:
Sent: Fri February 17, 2023 09:51 AM
From: Philipp Hornung
Subject: How remove/hide a Upload files button
Hi Ilyas, How is the user supposed to upload a file if not by the item from your first post? I'm just curious.
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Philipp Hornung
Business Intelligence Manager
Techniker Krankenkasse
Hamburg Germany
#IBMChampion
Original Message:
Sent: Fri February 17, 2023 08:23 AM
From: Ilyas Yulyev
Subject: How remove/hide a Upload files button
Hi! This option is not suitable because the user must be able to upload files to a My folder.
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Ilyas Yulyev
Original Message:
Sent: Thu February 16, 2023 11:03 AM
From: Patrick Neveu
Subject: How remove/hide a Upload files button
Hi Ilyas,
Or from Manage / People / Capabilities / Upload files, you can change the following access:

Best regards,
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Patrick Neveu
Positive Thinking Company
Original Message:
Sent: Wed February 15, 2023 11:39 AM
From: Ilyas Yulyev
Subject: How remove/hide a Upload files button
Hi!
How remove/hide a Upload files button? This method didn't help (Removing a user interface element ).
This one didn't help either. (Customizing roles)

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Ilyas Yulyev
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