Click on the button with the word “ATTACH” on it.
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Once a new window pops up, click the “+” button.
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Select “Add File” on the drop-down window selections.
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Select the desired file, then click “Open”.
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Once the file name populates the window, click “APPLY” to finish attaching the file.
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You can see all files that are attached under the “ATTACH” button.
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