I want to have multiple steps with different time increments in a dynamic linear simulation (modal time history). how can i do this?

for example i want to have two steps with the following details:

step 1:

 initial time: 0

end time: 1

increment: 0.1

step 2:

 initial time: 1

end time: 2

increment: 0.001

any other strategy is also appreciated.

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