With version 9.21, winIDEA IDE confronted a few changes. One of the changes affected are commands
The configuration for Download Files (Load Code) and Symbol Files (Load Symbols) was accessible from a single menu, Debug > Files for Download > Edit.

The configuration is done via two separate menus to accommodate the software design of complex SoCs.
To load symbols, adding a symbol file is configured via Debug > Session Configuration > Applications > Symbol Files.

Note that the same file can contain both, symbols and code. In such case, typically the same file would be configured under Load Symbols and Load Code configuration.
To load code, adding a download file is configured via Debug > Session Configuration > SoCs > Program Files.

Note that the same file can contain both symbols and code. In such a case, typically, the same file would be configured under Load Symbols and Load Code configuration.
If you use the same ELF file for code and symbols, you have to change the file at both locations if you want to use a different file.
If you modify program and symbol files often, it might be helpful to have a shortcut to access these two windows.
If you have the shortcut enabled, you can modify files by selecting Debug > Program Files/Symbol Files for each application.
To enable this option, go to Tools > Options > Environment > Advanced and check Program and Symbol Files shortcuts.