I won't "see it 1 time only, when first joining the server".
I'd like a player see it later by some key.
Due to significant changes in RoW this mod is no longer compatible nor preferred. Please download the latest version of RoW to get such features built-in with better compatibility. I'm still leaving the project site up just in case someone wants to try to cobble together an old build, but I don't recommend it.
All the basic stuff of mods applies here. Back-up your world, crashes may occur, I'll help you debug something if you provide a report, yadda yadda. What's most important is the version of ROW you are using. If your're using RoW-1.7.10-15.01.18-0 you'll need to use a version prior to 7. Newer versions are based on my branch of ROW and are incompatible with older branches. If you have a different version you might be okay, or you might break your world. Removing ROWAM will restore your world, should it break this way.
The signal block is the heart of the ROWAM. This block allows you to control the throttle of any locomotive through its GUI.
If the signal block is the heart of the ROWAM, the pointer block is the brain. Again, all options are set using its GUI.
The station block allows for the creation of stops along your rail route. It stops trains, applies brakes, loads entities, schedules departures, and will even blow a train's whistle when it arrives or departs. If holding a loco, it will output a redstone signal through a comparator. Like the previous blocks, all settings are in the GUI. The buttons on the top of the GUI switch between loco and freight settings, with the loco settings dealing with station events, and the freight settings dealing with entity loading and unloading.
Note that entities must match the entity selector and be near the loading point of a cart during departure to be loaded. This can be a bit of a problem if your animals or villagers tend to crowd around each other.
The tank block puts your tank carts to use for you, allowing them to hold liquids. Placing a tank block next to any forge-compatible tank block will transfer the tank's fluid into nearby tank cars. Right-clicking the tank block will toggle it from drain to fill mode. If provided with a redstone signal, the tank block will stop working. Additionally, any tank block that's currently filling or draining a tank cart will output a redstone signal. To make sure you don't put lava in your water tank cart and end up hauling obsidian, the tank block assigns the id of the liquid to an empty tank cart before use. If an empty tank cart is being filled for the first time it will have its color set to reflect its contents (or grey if the color of the liquid is not defined). Changing a tank cart's color with a dye will not affect the liquid loading capabilities. Currently, only water, lava, oil, and fuel are recognized colored liquids; other colors can be added to the code if desired.
The fueling block allows you to keep your trains running during long hauls by refueling any nearby locomotives and tenders. It pulls coal from an adjacent chest, and outputs a redstone signal while it's fueling. It will only fuel a locomotive to its max fuel value, after which it stops outputting redstone. Because of this it can be used in conjunction with a signal block and station block to create automatic refueling points on your railway.
Formerly used as the bogie block, the freight block is used exclusively with my version of ROW to allow you to automatically load and unload cargo from the Cher's tub to any chest-based tile entity. This, coupled with a few fueling stations, will finally allow you to automate your mining railway.
The detector block is appropriately named, as it outputs a redstone signal when a locomotive or cart is nearby. While it doesn't do anything spectacular, you can combine this function with pointer blocks to switch carts or with other mods to create a locomotive detection network.
ROWAM has the unique ability to chunkload all ROW stock and ROWAM blocks. This is used to ensure proper operation of automatic railways and signals. All stock is only loaded in its own chunk to help keep the server load down.
What you're looking for is Just Another Spawner and Mob Properties.
They'll handle both those issues nicely.
I would definitely pick this project up. I have an idea of implementing like Mobius strips and Klein Bottle or something non-ecluidian, like tunnels that turns into themselves or some bigger-on-the-inside thing (TARDIS). Besides that, I'm out of ideas. Any1 wanna team? PM me. Needs some1 who has a better spacial sense (3D) than me Not gonna start project yet...
-From the Programmer who wants to do something
Ah, see, that's a different question entirely. You should have just said so!
Just find the base stone texture in the resource pack (assets/minecraft/textures/blocks/stone.png) and delete it. Ditto for the vanilla ores. Minecraft replaces any 'holes' in the resource pack with vanilla assets automatically, so there's no reason to bother transferring things if you want to end up with the default anyway.