Button based on dropdown entity with state function

Hi Everyone. I’m having a enitity from MQTT (Ebusd) called select.ebusd_ctlv2_z1sfmode_sfmode.

auto is the normal function where load is the booster function.

This Entity has several option to pick from. What i want to create is one button that selects only one option but also shows the current state. It is used for a booster function on my heater. After a time the state is switching back to normal operation if the water is warm enough.

Can anyone help me how to create this.