Hi Marcin,
Thanks for the feedback. Let me address your questions one by one:
1) Right now there is not a way to do that with the eIQ Portal tool but that is something we can implement in future update.
2) You can use the Jupytr notebook at C:\nxp\eIQ_Toolkit_v1.0.5\workspace\importer\Structured Folders Importer.ipynb to import images from a folder structure. There's a lab document that goes through step-by-step how to use that here: https://community.nxp.com/t5/eIQ-Machine-Learning-Software/eIQ-Portal-for-MCU-Getting-Started-Labs/t...
3) There are no constraints about importing files with the same name as some datasets may have them labeled as "1.jpg", "2.jpg" and separated by folder. Thanks for the feedback on that though.
4) Thanks for the feedback and we'll look at adding that in the next update.
5) We'll get that fixed in the next update.
6) You can see the number of images left unlabeled in this highlighted section:

7) We'll fix that in the next update.
Let us know if you have any more questions!
-Anthony