Kind of. You can include a message requesting that the charity use your gift for something specific (to support a particular program, person, etc.). We will be sure to send the message with your gift and ask that they honour your request, but we can't guarantee they will.
How do I support a friend raising money for a charity?
There are actually a couple ways to do this.
Give money to your friend. By giving it to your friend, you show your support for their efforts and allow them to pass on the money to the charity. Give money to the charity your friend is supporting. Just find the charity on Chimp and include a message noting what the gift is for. Include as much information about your friend's participation as you can (like the name and location of the event, your friend's full name, etc.).