Hi, very useful the CubeMX / Atollic TrueSTUDIO integration. However, ¿how do I switch from C source code screen to Device Configuration Tool? I click the light blue MX button at upper right but nothing happens, Tnank you in advance.

You can double click the .ioc file in the Project Explorer to open the Device Configuration Tool.

Many thanks Markus. It works but pay attention, I've done now this operation just now and the Device Configuration Tool erased my code inside main.c, only declared variables inside main function have remained unchanged. This is very bad, it may be a bug? I'm using latest version V1.01 of STM32CubeIde.