Hey there, the Aeros does not currently work as the Master device, and cannot send out Time signature/Tempo if it is not receiving it
This is something we hope to work on soon.
As far as your question, you cannot do something like this, no, though your request sounds similar to this one.
It could be we could create smart ‘filters’ for how Aeros is expected to behave at a given time, but we do not know when users can expect this or if we plan to pursue this option.
For this reason I will tag as #considered though it may actually be a duplicate of this other request I linked here, let me know if this makes sense, thanks!