Logstash grok multiple pattern , multi-line

Hello everyone , Im using grok to parse log file consisting of multiple pattern lines , these multiple lines represent one task being done in the system. My question is how should I do this if I need to add fields to the output field with each new line being read and matched to different pattern. If so could I make completely new field after matching last line of task and so getting multiple output fields for one big log file containing multiple tasks ?

Unfortunately cant fit in the whole log lines but in the beginning there is the same pattern in each and every line , I'm doing different patters to match some fields from greedydata after [5fda1d109ceec746643760f5]

2020-12-16 15:43:33.035  INFO 18020 --- [http-nio-8080-exec-7] c.n.w.workflow.service.TaskService       : [5fda1d109ceec746643760f5]: Task [GENERATE] in case [11.11.2020 13:20] assigned to [super@netgrif.com]
2020-12-16 15:43:33.012  INFO 18020 --- [http-nio-8080-exec-7] c.n.w.workflow.service.TaskService       : [5fda1d109ceec746643760f5]: Task [GENERATE] in case [11.11.2020 13:20] evaluating rules of event ASSIGN of phase POST
2020-12-16 15:43:33.009  INFO 18020 --- [http-nio-8080-exec-7] c.n.w.workflow.service.DataService       : [5fda1d109ceec746643760f5]: Running actions of transition 12

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