If you mean you want to upload the ravenloft haks to a custom module so you can experiment with lvling up using this servers custom features then it's fairly simple. It's just all about what order you load the haks in to the module and making sure you get them all.
1. Open the toolset and create a new custom mod
2. Click "Edit" > "Module Properties" > "Custom Content"
3. Load these hak files in this exact order
rl_2da_v195b
rl_addons
rl_creatures
rl_mountain
rl_placeables
rl_ruralcity
rl_tilesetaddons
rl_tiletextures
cep2_top_v24
cep2_add_doors
cep2_crp
cep2_custom
cep2_core7
cep2_core6
cep2_core5
cep2_core4
cep2_core3
cep2_core2
cep2_core1
cep2_core0
ctp_common
ctp_loadscreens
ctp_elf_interior
ctp_exp_elf_city
ctp_goth_int
ctp_goth_estate
4. Make sure custom Tlk file is ravenloft
5. Click "Okay" and let it put everything together for you, you're done!