Yes, the monitor supports portrait mode. According to the user manual, when 'Auto' is selected, the on-screen display menu orientation automatically changes to landscape or portrait mode, depending on the monitor's orientation.

This article has Bluetooth and Wifi. Here is the data sheet: https://images.samsung.com/is/content/samsung/assets/de/business/displays/pdf/Datenblatt_Smart_Signage_LH24QBCEBGCXEN.pdf

This can be done without any problems. However, these settings must be made independently, i.e. a template is not available.