https://github.com/adventuregamestudio/ags-manual/wiki/Globalfunctions_General#restoregamedialog
RestoreGameDialog() and SaveGameDialog() now let define a range of save slots for display.
The min_slot and max_slot parameters are new to 3.6.2 release
/// Displays the default built-in Restore Game dialog.
import void RestoreGameDialog(int min_slot = 1, int max_slot = 100);
/// Displays the default built-in Save Game dialog.
import void SaveGameDialog(int min_slot = 1, int max_slot = 100);
Added also in PR adventuregamestudio/ags#2541