Multiple manual pipelines in single repo

GitLab CI/CD
,
1

Hi everyone,
I wanted to ask for help with manual pipelines.
I am looking for the best approach in the following setup:
Say I have 1 repo. I need manually to run several different pipelines(set of jobs) which require different input variables.
Bitbucket for example:

  custom:
    pipeline1:
      - variables:
          - name: variable
            default: value1
            allowed-values:
              - value1
              - value2
      - step: *some-step
    pipeline2:
      - variables:
          - name: anotherVariable
            default: value1
            allowed-values:
              - value1
              - value2
              - value3
      - step: *another-step
      - step: *one-more-step

And from ui you can select needed pipeline and see the required set of variables.
In gitlab what I am doing now: using “switch” variable which is used by jobs to define what will be added to pipeline.The problem is that on ui all variables are seen and passed to pipelines, since I define them at global level

variables:
  MANUAL_PIPELINE_TYPE:
    value: "type1"
    description: "The type of manual pipeline to run"
    options:
      - "type1"
      - "type2"
      - "type3"
  VARIABLE1:
    value: "value3"
    description: "Some description"
    options:
      - "value1"
      - "value2"
      - "value3"
  VARIABLE2:
    value: "value1"
    description: "Some description"
    options:
      - "value1"
      - "value2"

Maybe you have any suggestions or examples?
Thanks in advance