You can replace a file by right clicking it and selecting "Replace file".

After that a window will open that is similar to the upload file window.

In this window you can click the button "Choose File" to upload a new file that will then replace the old one.

But you are also able to choose the option to choose a replacement file from the TIS file system

When choosing a file from the TIS file system you have to select a TIS file by clicking on "Browse".

After you have chosen a file you can decide if you want to backup the old file if not then leave that text box empty.

You can also choose if you want to keep the references of the replacement file or ignore them.

You are also able to replace a file in the File Properties by clicking on "Replace".