ところを/ところに/ところへ => At time/situation A N2
Information, Report
ところ => Have done N4
Situations and Experiences
こと => Do A (command) N2
Will, Decision, “Doing”
こととて => Because A N1
Reason, Result, Response
てこそ => Now since A... N2
Reason, Result, Response
ばこそ => Because of A N1
Reason, Result, Response
ことはない => Not necessary N3
Needs, Requirement
ことにする => Decide to N4
Causative, Passive, Volitional
こそ~が => Although A is B N1
Contrast/Surprise
に[越「こ」]したことはない => It's better if A, it's better if it's A N1
Comparison/ Exchange
そこで => Considering the situation A, B N2
Considering, Concerning
ところだった => About to… N3
Will, Decision, Doing