I'm looking for details on the divine play of Gajanan Maharaj as described in the Shri Sai Satcharita. What can you tell me?

The provided source material from Chapter 29 of the Shri Sai Satcharita does not contain any information about a saint named Gajanan Maharaj. Instead, the chapter begins by promising to narrate something special about Shri Sai's "incomprehensible wisdom" and "unfathomable divine play." The narrative that follows illustrates Sai Baba's character, particularly his unpredictable generosity. For instance, it describes how he might give money or sweets to some visitors but send others back empty-handed, as noted in verse 13. The text attributes this divine play and the generous acts of "the Maharaj" entirely to Sai Baba of Shirdi, not to any other saint.