Question about Roborock S8 Pro Ultra

Dear Community 🤗 The S8 Pro Ultra can "climb" up to 19mm, but unfortunately my door thresholds are a little over 35mm... 🤦‍♂️ Is a small "intermediate step" at half height (how long should it be) or a "ramp" (at what gradient) enough or is it 'only' possible to carry it from room to room and clean it individually? 🤔🙈 Thank you very much 👍