Question about Samsung Flip WM55H

I am moderately satisfied with the Flip. Some things have already been mentioned. On the one hand, the processor is quite weak. But I'm particularly bothered by the fact that you can't produce images from the image from the HDMI input (for example, image from your own software). We would need that so that we could attach comments to our software. The support is also very unwilling, probably because a third party company develops the software. Unfortunately, there has also been no software update for months. Unfortunately, there is also no software with which flips can already be prepared offline. You always have to stand at the flip if you want to prepare your flipcharts before a session. A great pity. At the moment, the Samsung Flip is still a half-measure at a rather high price (complete with stand = CHF 3000).