Conda in Julia create new Environment inside an Environment directory, how to change it?

I am using Julia-1.7.3, I type this:

```
julia> ]

pkg> add Conda

julia> using Conda
julia> Conda.add("matplotlib", :nagienv)
```

Then I get this:

**[ Info: Running conda create -y -p /home/browni/.julia/conda/3/envs/pyplot_env/envs/nagienv in root environment Collecting package metadata (current_repodata.json): done Solving environment: done**

Before it was:
**conda create -y -p /home/browni/.julia/conda/3/envs/nagienv**

what should I do to change the target directory for new environment?

I try to set Python Env and build PyCall :
```
julia> ENV["PYTHON"] = "/home/browni/.julia/conda/3/bin/python3"
julia> using PyCall
julia> ]

pkg> build PyCall
```
it is still creating environment inside an environment directory. I just want a tidier folder structure. Thanks.

Reproduce the Julia REPL commands using Conda.add("matplotlib", :nagienv), then compare the reported conda create paths with the PYTHON setting and PyCall build step. Done means the requested environment is created in the intended target directory rather than nested under another environment.

Written by the indexing model from the issue text.