Hi everyone,
I'm new and I don't know much about the commands,
Could someone make a video for how to add a simple buffer and gm shop to my server?
I ask for a video because that way I understand better!
Thank you!! 
game\data\stats\npcs\custom SchemeBuffer
that is the buffer you just have to give it to //spawn (id of the npc)
and for the shop the easiest way is to enable the community board and in the npc custom file create a npc as an example:
<npc id="900000" displayId="id of a npc for the skin" type="Folk" name="put name here" usingServerSideName="true" title="Merchant" usingServerSideTitle="true">
and you do the dialogue in html/default with the same number as your npc id in this case 900000
<html><body>%npcname%:<br>
Welcome adventurer! Do you have something for me? <br>
I have everything you need for your adventure, take a look.<br>
<button value="Merchant" action="bypass _bbstop;merchant/main.html" width=200 height=30 back="L2UI_CT1.OlympiadWnd_DF_BuyEquip_Down" fore="L2UI_CT1.OlympiadWnd_DF_BuyEquip">
</body></html>
