Hey @Yenny_Moon, thank you for reaching out!
You should be able to export all assets in Dev Mode. Could you please share a screen recording with me how it is only possible for you ‘to download assets one by one on the assets panel’?
Also, if you have can edit access to a file, you can use the Slice tool in the design mode to select and export a portion of your canvas. You can find more information in our Help Center article: Export from Figma

Thanks,
Gayani
Hey @Yenny_Moon, thank you for reaching out!
You should be able to export all assets in Dev Mode. Could you please share a screen recording with me how it is only possible for you ‘to download assets one by one on the assets panel’?
Also, if you have can edit access to a file, you can use the Slice tool in the design mode to select and export a portion of your canvas. You can find more information in our Help Center article: Export from Figma

Thanks,
Gayani
that exports the whole page image. i want to export all the icons and images inside that page