colcon configure step

[mhubii]

Hi there, please feel free to close this issue if irrelevant.

I understand that colcon is a meta build system that invokes other build tools, like CMake.

In CMake, there is a configuration step, which caches. Using e.g. ccmake (or other tools), lets users read / modify the cached variables. This is quite convenient pre compilation as it lets users see / modify available variables.

Is there such abstract functionality in colcon?

Thank you for consideration.