How to organize my workspace with directories architecture

I have a lot of projects, I organized it it in directories (categories)

How to import my workspace in PyCharm ? And see the same structure (I don't want to have all my project on the same level...)

I did it in eclipse using Working sets and import as external source...

Here my workspace :

├── Datasets
│   ├── SparkBasics
│   └── TwitterArchiveOrg
├── IR
│   └── Example
├── NLP
│   ├── STS
│   └── SultanWordAligner
├── Example
│   ├── MailStat
│   └── POCImmo
├── Organization
│   ├── Dashboard
│   ├── Markdown2HTML
│   ├── MendExtractor
│   └── WorkspaceManager
├── Tests
│   ├── Perceptron
│   └── Test
├── Utils
│   ├── DatabaseTools
│   ├── DataStructureTools
│   ├── DataTools
│   ├── DeviceTools
│   ├── MachineLearning
│   ├── NetworkTools
│   ├── NLPTools
│   └── SystemTools

etc etc etc...