Hi,
OK, we rechecked everything again. If you check the “existing toolchain.cmake” checkbox in the wizard, but do not specify a file, VisualGDB will ask whether you want to proceed without using a toolchain file at all (equivalent to setting DisableToolchainFile to true). However, the VisualGDB Project Projecties window indeed did not allow enabling this mode.
We have updated it to allow selecting any of the 3 options (existing file, generated file, no file) in this build: VisualGDB-6.0.101.5173.msi​
We will also look into decoupling generated toolchain files from the reference to the VisualGDB’s embedded project framework (that adds commands like find_bsp() and also changes some build flags).