FileWriteCHR

void FileWriteCHR(int filehandle, int ent)

Writes an on-map entity into a file handle open for writing. Fairly advanced, so this is only recommended if you plan on making a map editor within Verge or something. Although, you can't exactly manipulate the entity's image data at the moment, so this is also VERY limited.

int f = FileOpen("mychr.chr", FILE_WRITE);
if (f)
{
	FileWriteEntity(f, 0);
	FileClose(f);
}