FireDac how to set MySQL options before connecting to DB?

Question

MySQL

Before connecting, you need to set the MYSQL_INIT_COMMAND option
Tried like this:

TMySQLSession *session = (TMySQLSession *)FDConnection1->CliObj;
session->Lib->mysql_options_(session->MySQL, MYSQL_INIT_COMMAND, "call init_session()");
FDConnection1->Connected = true;

The problem is that the connection to the FireDAC database opens already from the first line, i.e. calling FDConnection1->CliObj automatically opens the connection.