Hi @ckarageorgiou
Please refer to the EMA C++ Quick Start for RTO
EMA Quick Start - Connecting to RTO
As well as the EMA example 113 used in the Quickstart, Example 450 also demonstrates an alternative technique for connecting to RTO.
There is also some basic Config guidance for using RTO with EMA in the following articleEnterprise Message API (EMA) - Configuration Overview | Refinitiv Developers