Rule name
donate_block_amounts
Details of rule
50|100|250|400
This will display $50, $100, $250, and $400
If you would like to display $25, $50, $75, and $100 for example then you would replace 50|100|250|400 with 25|50|75|100.
An "other amount" button will display automatically when fewer than 4 options are specified.