I give away a different FL Studio Patcher preset that I have created every week. To see what free downloads are currently available, you can find this on the Giveaways page.
This post is a step-by-step guide on how to add new FL Studio Patcher presets.
1 | Find the folder where your existing FL Studio Patcher presets are contained
Depending on the whether the preset is a generator or an effect preset, you will need to put the .fst preset file in one of two places.

For effects, the default location on Windows is:
C:\Users\<username>\Documents\Image-Line\Data\FL Studio\Presets\Plugin presets\Effects\Patcher
For generators, the default location on Windows is:
C:\Users\<username>\Documents\Image-Line\Data\FL Studio\Presets\Plugin presets\Generators\Patcher
If your Patcher presets are stored elsewhere, you can find the directory path by loading Patcher and clicking the arrow icon in the top left to open a menu, then click “Save preset as…” to bring up a save dialog box. The directory path for User presets will be in the navigation bar, you can copy this and paste it into File Explorer.

Once you have reached your Patcher presets folder, you can create new folders and sub-folders to organise your presets.
2 | Move the preset into the correct folder
It may help you to keep track of your downloaded presets by creating a folder inside the Serum presets directory called “Downloaded Presets” and then having sub-folders for each site you download from.

Once you have created the folders you want, move each preset (.fst file) you have downloaded into the appropriate folder(s).
Each folder will appear as a header in the preset selection.