SPLIT / REVEAL MACRO
To install the macro inside of fusion, download the .setting file. Copy the settings file to the macro directory on your computer and restart Davinci Resolve. After resolve is restarted, open a fusion composition. You can either open the effects panel and click tools->macros or enter CTRL+SPACE and search for JustSplitReveal.
PC: \Users\YOUR-NAME\AppData\Roaming\Blackmagic Design\DaVinci Resolve\Support\Fusion\Macros
MAC: /Users/YOUR-NAME/Library/Application Support/Blackmagic Design/DaVinci Resolve/Fusion/Macros