Hi,
your question is not that clear !!!
Are you talking about a situation during which you loose an engine and do not anymore meet the climb requirements stated in the departure proc's.???
If this is your point, yes we do prepare an alternative routing in that case, based on the analyse of all available infos around the airport, dep chart, msa, visual chart..etc..In particular cases, we ask specific company to build a procedure for us, but this is extremely expensive...anyway safety has no price..
rgds