# Sequential scArches

**URL:** https://discourse.scverse.org/t/sequential-scarches/1771
**Category:** scvi-tools
**Tags:** integration, scvi, scarches
**Created:** [September 24, 2023, 12:23pm UTC](https://discourse.scverse.org/t/sequential-scarches/1771 "2023-09-24T12:23:41Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Tinos94](https://avatars.discourse-cdn.com/v4/letter/t/58956e/32.png) [@Tinos94](https://discourse.scverse.org/u/Tinos94)
#### Post date: [September 24, 2023, 12:23pm UTC](https://discourse.scverse.org/t/sequential-scarches/1771/1 "2023-09-24T12:23:41Z")

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Hi,

Thank you for this amazing tool-kit!

Is it possible to perform sequential scArches, i.e. starting with a trained scVI reference model, and adding a single query dataset at a time? If so, how can I save the concatenated model as I go along? The same way as I save the scVI and scANVI model?

Thanks!!