Does the table layout have the function of merging cells?（colspan, rowspan）

[jiefei666]

Environment

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• Hosting type
  • [x] Form.io
  • [ ] Local deployment
    • Version:
• Formio.js version:
• Frontend framework:
• Browser:
• Browser version:

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Expected behavior

Observed behavior

Example

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[TanTit]

This is really necessary. Hope to update soon