Sajdah-e-Tilaawat

Imaam going into ruku immediately after reciting the aayat of sajdah and making the intention of sajdah tilaawat in ruku

Q: In Fardh Salaah, as an Imaam, if I read an Aayah of Sajdah, can I immediately go into ruku at the end of the Sajdah Aayah? i.e. (not going down into a Sajdah Tilaawah), but making intention of sajdah in the ruku.

NB: I did this a few items without informing the congregation.

Please can Mufti Saheb inform me what is the correct thing to do.

Repeating the sajdah tilaawah aayah in a musjid or classroom

Q:

1) If I am reading a sajdah tilaawah aayah repeatedly on the same spot, then only one sajdah is compulsory. However, if I am in a musjid and I am reading the same aayah while moving around, then how many sajdahs do I have to make? Does the distance I cover while moving around make a difference?

2) If I am reading the same sajdah aayah in madrasah in the same classroom but at different spots, then how many sajdahs do I have to make?